Re: [Elphel-support] Ordering stereo camera

[Olga Filippova]

Dear Elham,

I will send you another quote in the next e-mail.
We will include SD-card and micro USB cable free of charge as these items
are part of the camera. SD-card is needed for initial booting the camera
and for recovery. Camera lenses are sold separately from the camera,
because we do not manufacture lenses, we have to purchase them, so we can
not provide discount, but please note that we sell these lenses at the cost
price.
We can make the camera base at 22cm and 44cm, the base is not variable,
unless you disassemble camera and modify the base.

Best Regards,

Olga

On Tue, Sep 6, 2016 at 8:05 AM, Elham Omrani  wrote:

> Dear Olga,
> Thank you for providing the requested information. According to my
> supervisor’s opinion, we don’t need power supply and microSD card. Why have
> you added  extra 4 M12 Lenses?
> Are camera baselines 22 and 44 cm? or are  these variable?
> This is addresses of Dr mousazadeh:
> Hossein mousazadeh
> Department of Mechanical Engineering of biosystems
> College of Agriculture and Natural Resources
> University of Tehran
> Daneshkadeh Cross
> postal code: 31587-77871
> Karaj - Alborz - Iran
> phone/fax: +98-2632801011 / +98(26)32808138
> Cell phone: +989120264801,+989389522974
> Email: hmousaz...@ut.ac.ir
> I'm looking forward hearing from you.
> Best regards
> Elham
>
>
>
> On Tuesday, August 30, 2016 12:41 AM, Elphel Support <
> support-list@support.elphel.com> wrote:
>
>
> Elpham,
>
> Using dual 2-lens system does not give you any advantage compared to two
> separate systems, and for research project I would rather use 2 separate,
> for simplicity.
>
> You know that there are many ways to process multi-view images, most use
> feature extraction and keypoints before calculating disparity and so the
> distance.
>
> Alternatively you can start from correlation (in most cases a
> superposition of the correlation and phase correlation) of the (usually
> just 2) images trying to get distance to objects that do not have easily
> identifiable feature but still have many high-frequency components.
>
> Both paths have some advantages and disadvantages, correlation provides
> better Z-resolution (you can easily operate with disparities being a small
> fraction of a pixel - like 0.1), but it is easy to get into ambiguous
> results, especially when the objects have some periodic structures.
>
> Using more than 2 view simultaneously can reduce ambiguity significantly,
> and finally get high precision distance measurements before the image is
> analyzed for feature extraction. Right now we do not have this code in
> FPGA, but it is one of our close targets that we'll work on when the base
> software for the cameras will be finished, so correlation will be done at
> "hardware" speeds in the same NC393-based cameras running new code.
> Meanwhile you could post-process images on a regular PC.
>
> I've seen much less works on the distance measurements with multiple-view
> systems compared to the standard 2-sensor systems, so that would give you
> an opportunity to do an interesting research.
>
> You could play (just online or download sources for analysis) with our
> "triclops" images that are linked on our web site to get an idea of the
> advantage of the multiple view systems.
>
> Andrey
>
>
>  On Mon, 29 Aug 2016 12:27:28 -0700 *Elham
> Omrani>* wrote 
>
> Dear Olga,
> Thank you for  providing the requested information. Yes, we want to use
> Inline camera as 2 stereo cameras. Inner lenses are a stereo vision system
> with smaller baseline and focal length (suitable for near distance) and
> outer lenses are a stereo system with bigger baseline and focal length (for
> far distance). As you know, stereo vision error increases with increasing
> distance. Because of this, researchers uses 2 stereo camera in a unified
> system to decrease disparity error.
> If you use same baseline and focal lenses, What is your purpose of
> designing H- model or inline model with same baseline and focal lenses?
> About lens, In addition to 4.5 mm lens, what lens do you recommend (we
> prefer bigger than 4.5 focal lens)?
>  I'm looking forward hearing from you.
> Elham
>
>
>
> On Monday, August 29, 2016 9:53 PM, Olga Filippova <
> support-list@support.elphel.com> wrote:
>
>
> Dear Elham,
>
> can you please explain the technical reasons for ordering inline camera?
> It looks like you plan to use Inline camera as 2 stereo cameras with 2
> different bases. This is fine, but it has been done before, while the
> H-camera presents interesting research opportunities.
>
> Practically speaking we offer 4.5mm lenses (custom adjustment has been
> made to fit this lens to the camera, using 3 different adapter rings, as
> can be seen here: http://www3.elphel.com/importwiki?title=File:
> N125B04530W_adapter.jpeg) But we do not offer any 9 mm lenses - we have
> not tested any of 9mm lenses and we don't have these in stock, however you
> are welcome 

Re: [Elphel-support] Ordering stereo camera

[Olga Filippova]

Dear Elham,

we can send you the Inline camera but the waterproof case is not going to
be ready. It will take several weeks to machine some parts that can not be
3D-printed, after the design is finished.
We can sponsor this project provided that your software is free and open
source and all documentation is available on Github or similar repository.
It would be also nice if you can write an article on Elphel blog about your
project, like other sponsored clients did:
http://blog.elphel.com/category/success-story/

Best Regards,
Olga


On Sat, Sep 3, 2016 at 8:41 AM, Elham Omrani  wrote:

> Dear Andrey,
> Thank you. You’re so helpful. I apologize for late reply.The robot is an
> industrial type that will be used in outdoor conditions. There fore, it is
> very important to detect obstacles with high accuracy  since the accuracy
> parameter is more critical than ambiguity. In addition, we must finish
> this project in the next month and we don't have enough time to code new
> software.
> According to above statements, we prefer to use Inline model.
> I hope we use H-model in future projects.
> what is difference of 2 stereo cameras(that has 4 lenses) with a 4 lenses
> stereo system?
> I'm hurry in my project please quote as soon as possible.
> I looking forward hearing from you.
> Best Regards
> Elham
>
>
>
>
>
> On Tuesday, August 30, 2016 12:41 AM, Elphel Support <
> support-list@support.elphel.com> wrote:
>
>
> Elpham,
>
> Using dual 2-lens system does not give you any advantage compared to two
> separate systems, and for research project I would rather use 2 separate,
> for simplicity.
>
> You know that there are many ways to process multi-view images, most use
> feature extraction and keypoints before calculating disparity and so the
> distance.
>
> Alternatively you can start from correlation (in most cases a
> superposition of the correlation and phase correlation) of the (usually
> just 2) images trying to get distance to objects that do not have easily
> identifiable feature but still have many high-frequency components.
>
> Both paths have some advantages and disadvantages, correlation provides
> better Z-resolution (you can easily operate with disparities being a small
> fraction of a pixel - like 0.1), but it is easy to get into ambiguous
> results, especially when the objects have some periodic structures.
>
> Using more than 2 view simultaneously can reduce ambiguity significantly,
> and finally get high precision distance measurements before the image is
> analyzed for feature extraction. Right now we do not have this code in
> FPGA, but it is one of our close targets that we'll work on when the base
> software for the cameras will be finished, so correlation will be done at
> "hardware" speeds in the same NC393-based cameras running new code.
> Meanwhile you could post-process images on a regular PC.
>
> I've seen much less works on the distance measurements with multiple-view
> systems compared to the standard 2-sensor systems, so that would give you
> an opportunity to do an interesting research.
>
> You could play (just online or download sources for analysis) with our
> "triclops" images that are linked on our web site to get an idea of the
> advantage of the multiple view systems.
>
> Andrey
>
>
>  On Mon, 29 Aug 2016 12:27:28 -0700 *Elham
> Omrani>* wrote 
>
> Dear Olga,
> Thank you for  providing the requested information. Yes, we want to use
> Inline camera as 2 stereo cameras. Inner lenses are a stereo vision system
> with smaller baseline and focal length (suitable for near distance) and
> outer lenses are a stereo system with bigger baseline and focal length (for
> far distance). As you know, stereo vision error increases with increasing
> distance. Because of this, researchers uses 2 stereo camera in a unified
> system to decrease disparity error.
> If you use same baseline and focal lenses, What is your purpose of
> designing H- model or inline model with same baseline and focal lenses?
> About lens, In addition to 4.5 mm lens, what lens do you recommend (we
> prefer bigger than 4.5 focal lens)?
>  I'm looking forward hearing from you.
> Elham
>
>
>
> On Monday, August 29, 2016 9:53 PM, Olga Filippova <
> support-list@support.elphel.com> wrote:
>
>
> Dear Elham,
>
> can you please explain the technical reasons for ordering inline camera?
> It looks like you plan to use Inline camera as 2 stereo cameras with 2
> different bases. This is fine, but it has been done before, while the
> H-camera presents interesting research opportunities.
>
> Practically speaking we offer 4.5mm lenses (custom adjustment has been
> made to fit this lens to the camera, using 3 different adapter rings, as
> can be seen here: http://www3.elphel.com/importw
> iki?title=File:N125B04530W_adapter.jpeg) But we do not offer any 9 mm
> lenses - we have not tested any of 9mm lenses and we don't have these in
> stock, however you are welcome 

Re: [Elphel-support] Ordering stereo camera

[Elham Omrani]

Dear Andrey,Thank you. You’re so helpful. I apologize for late reply.The robot 
is an industrial type that will be used in outdoor conditions. There fore, it 
is very important to detect obstacles with high accuracy  since the accuracy 
parameter is more critical than ambiguity. In addition, we must finish this 
project in the next month and we don't have enough time to code new 
software.According to above statements, we prefer to use Inline model. I hope 
we use H-model in future projects.
what is difference of 2 stereo cameras(that has 4 lenses) with a 4 lenses 
stereo system?I'm hurry in my project please quote as soon as possible.I 
looking forward hearing from you.Best RegardsElham



   

 On Tuesday, August 30, 2016 12:41 AM, Elphel Support 
 wrote:
 

 Elpham,

Using dual 2-lens system does not give you any advantage compared to two 
separate systems, and for research project I would rather use 2 separate, for 
simplicity.

You know that there are many ways to process multi-view images, most use 
feature extraction and keypoints before calculating disparity and so the 
distance. 

Alternatively you can start from correlation (in most cases a superposition of 
the correlation and phase correlation) of the (usually just 2) images trying to 
get distance to objects that do not have easily identifiable feature but still 
have many high-frequency components.

Both paths have some advantages and disadvantages, correlation provides better 
Z-resolution (you can easily operate with disparities being a small fraction of 
a pixel - like 0.1), but it is easy to get into ambiguous results, especially 
when the objects have some periodic structures.

Using more than 2 view simultaneously can reduce ambiguity significantly, and 
finally get high precision distance measurements before the image is analyzed 
for feature extraction. Right now we do not have this code in FPGA, but it is 
one of our close targets that we'll work on when the base software for the 
cameras will be finished, so correlation will be done at "hardware" speeds in 
the same NC393-based cameras running new code. Meanwhile you could post-process 
images on a regular PC.

I've seen much less works on the distance measurements with multiple-view 
systems compared to the standard 2-sensor systems, so that would give you an 
opportunity to do an interesting research.

You could play (just online or download sources for analysis) with our 
"triclops" images that are linked on our web site to get an idea of the 
advantage of the multiple view systems.

Andrey


 On Mon, 29 Aug 2016 12:27:28 -0700 Elham Omrani 
wrote  

Dear Olga,Thank you for  providing the requested information. Yes, we want to 
use Inline camera as 2 stereo cameras. Inner lenses are a stereo vision system 
with smaller baseline and focal length (suitable for near distance) and outer 
lenses are a stereo system with bigger baseline and focal length (for far 
distance). As you know, stereo vision error increases with increasing distance. 
Because of this, researchers uses 2 stereo camera in a unified system to 
decrease disparity error.If you use same baseline and focal lenses, What is 
your purpose of designing H- model or inline model with same baseline and focal 
lenses?About lens, In addition to 4.5 mm lens, what lens do you recommend (we 
prefer bigger than 4.5 focal lens)?  I'm looking forward hearing from you.Elham
 

On Monday, August 29, 2016 9:53 PM, Olga Filippova 
 wrote:
 

 Dear Elham,

can you please explain the technical reasons for ordering inline camera? It 
looks like you plan to use Inline camera as 2 stereo cameras with 2 different 
bases. This is fine, but it has been done before, while the H-camera presents 
interesting research opportunities. 

Practically speaking we offer 4.5mm lenses (custom adjustment has been made to 
fit this lens to the camera, using 3 different adapter rings, as can be seen 
here: http://www3.elphel.com/importwiki?title=File:N125B04530W_adapter.jpeg) 
But we do not offer any 9 mm lenses - we have not tested any of 9mm lenses and 
we don't have these in stock, however you are welcome to purchase such lenses 
separately and install them on the camera.

I am researching the exporting regulations to Iran. I think we can ship our 
camera products to Iran, but I need to receive answers from the exporting 
agency, to make sure.

We offer standard 48V power supply that converts AC power from wall outlet to 
48V DC power. The camera uses 3.3V, but the power supply has to be minimum 12V, 
or 18V better, especially for camera with 4 image sensors. You can power the 
camera from the boat power supply. For development it is nice to have a wall 
adapter, like the 48 V AC-DC converter we offer (or you can use the one you 
already have or can purchase locally).

Best Regards,


On Sun, Aug 28, 2016 at 12:55 AM, Elham Omrani  

Re: [Elphel-support] Ordering stereo camera

[Olga Filippova]

Dear Elham,

can you please explain the technical reasons for ordering inline camera? It
looks like you plan to use Inline camera as 2 stereo cameras with 2
different bases. This is fine, but it has been done before, while the
H-camera presents interesting research opportunities.

Practically speaking we offer 4.5mm lenses (custom adjustment has been made
to fit this lens to the camera, using 3 different adapter rings, as can be
seen here:
http://www3.elphel.com/importwiki?title=File:N125B04530W_adapter.jpeg) But
we do not offer any 9 mm lenses - we have not tested any of 9mm lenses and
we don't have these in stock, however you are welcome to purchase such
lenses separately and install them on the camera.

I am researching the exporting regulations to Iran. I think we can ship our
camera products to Iran, but I need to receive answers from the exporting
agency, to make sure.

We offer standard 48V power supply that converts AC power from wall outlet
to 48V DC power. The camera uses 3.3V, but the power supply has to be
minimum 12V, or 18V better, especially for camera with 4 image sensors. You
can power the camera from the boat power supply. For development it is nice
to have a wall adapter, like the 48 V AC-DC converter we offer (or you can
use the one you already have or can purchase locally).

Best Regards,


On Sun, Aug 28, 2016 at 12:55 AM, Elham Omrani  wrote:

> Hello Olga,
> Thank you for your attention to this matter. Yes, I remember, but
> Contrary to my opinion, my supervisor emphasis on purchasing Inline model.
> Therefore we decide to order inline model. so please quote for *inline
> model*, with 22 cm inner baseline(for inner lenses )  with 4.5 mm lens, and
> 44 cm outer baseline with 9 mm lens.
> We want to ship the camera to Iran. Do you send the camera with DHL post?
>  According to your website, the required power for the 10393 system board
> is 3.3 VDC (http://wiki.elphel.com/index.php?title=10393) and Why do you
> use 48 v power supply ? what is required power for the camera? we have 12
> VDC and 20-30 VDC(variable) on our robot, is it suitable for the camera?
> or we must purchase 48 v power supply ?
> I'm looking forward hearing from you.
> Elham
>
>
> On Wednesday, August 3, 2016 1:44 AM, support-list <
> support-list@support.elphel.com> wrote:
>
>
> Dear Elham,
>
> Elphel is a small company, and all our funds come from the product sales -
> we do not use any government funding, private investments or crowdfunding.
> Our margin is lower than 50%, so such discount means that we already pay
> more for the components than receive for the camera sale.
>
> That is OK, we do sometimes donate to interesting projects, but right now
> we are still in the process of upgrading to the new line of the cameras,
> that involves rather expensive R that does not pay back immediately. We
> use now all the available resources to shorten the transition time, it is
> going well so far, but still there is work to be done.
>
> We may consider donating to interesting projects in the future, but right
> now it is all what we can afford to offer.
>
> As for the brochure - we do not yet have any for the new camera, all the
> information we have ourselves is posted online. Code is on Github (
> https://github.com/Elphel),  more information on our wiki (
> http://wiki.elphel.com/index.php?title=10393 ,
> http://wiki.elphel.com/index.php?title=Poky_2.0_manual, ) more picture in
> the blog post - http://blog.elphel.com/2016/05/3d-print-your-camera-
> freedom/
>
> Here - http://wiki.elphel.com/index.php?title=Elphel_camera_assemblies
> (the link is on our home page) you can take our camera apart and look at
> each component (all components have CAD files on our wiki - files you can
> use to build the parts).
>
> Andrey
>
>  On Tue, 02 Aug 2016 08:15:32 -0700 *Elham Omrani
> >* wrote 
>
> Dear Andrey,
> Thank you for your excellent suggestion. we will be very happy if you
> contribute in this project. could you please raise the percent of your
> sponsorship? furthermore, is it possible to send us the NC393-H brochure?
> we are sincerely grateful for your contribution
> Elham
>
>
>
>
> Dear Elham,
>
> Your project seems very interesting.  We can sponsor 50% of the cost of
> the NC393-H for your team and provide additional technical support. Will
> the result of your research be open for others to reproduce?
>
> Andrey
>
>  On Mon, 01 Aug 2016 01:27:18 -0700 *Elham Omrani
> >* wrote 
>
> Dear Andrey
> I'm PhD student and in my thesis is "*Implementation of stereo vision
> system for obstacle detection in solar boat"*
> this is my website:http://emorvarid.ut.ac.ir/Members.htm
>
> Elham
> On Monday, August 1, 2016 11:27 AM, support-list <
> support-list@support.elphel.com> wrote:
>
>
> Dear Elham,
>
> What kind of project is it ? Is it a personal, commercial, student/Ph.D
> research, something 

Re: [Elphel-support] Ordering stereo camera

[Elphel Support]

Elpham,

Using dual 2-lens system does not give you any advantage compared to two 
separate systems, and for research project I would rather use 2 separate, for 
simplicity.

You know that there are many ways to process multi-view images, most use 
feature extraction and keypoints before calculating disparity and so the 
distance. 

Alternatively you can start from correlation (in most cases a superposition of 
the correlation and phase correlation) of the (usually just 2) images trying to 
get distance to objects that do not have easily identifiable feature but still 
have many high-frequency components.

Both paths have some advantages and disadvantages, correlation provides better 
Z-resolution (you can easily operate with disparities being a small fraction of 
a pixel - like 0.1), but it is easy to get into ambiguous results, especially 
when the objects have some periodic structures.

Using more than 2 view simultaneously can reduce ambiguity significantly, and 
finally get high precision distance measurements before the image is analyzed 
for feature extraction. Right now we do not have this code in FPGA, but it is 
one of our close targets that we'll work on when the base software for the 
cameras will be finished, so correlation will be done at "hardware" speeds in 
the same NC393-based cameras running new code. Meanwhile you could post-process 
images on a regular PC.

I've seen much less works on the distance measurements with multiple-view 
systems compared to the standard 2-sensor systems, so that would give you an 
opportunity to do an interesting research.

You could play (just online or download sources for analysis) with our 
"triclops" images that are linked on our web site to get an idea of the 
advantage of the multiple view systems.

Andrey


 On Mon, 29 Aug 2016 12:27:28 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Dear Olga,
Thank you for  providing the requested information. Yes, we want to use Inline 
camera as 2 stereo cameras. Inner lenses are a stereo vision system with 
smaller baseline and focal length (suitable for near distance) and outer lenses 
are a stereo system with bigger baseline and focal length (for far distance). 
As you know, stereo vision error increases with increasing distance. Because of 
this, researchers uses 2 stereo camera in a unified system to decrease 
disparity error.
If you use same baseline and focal lenses, What is your purpose of designing H- 
model or inline model with same baseline and focal lenses?
About lens, In addition to 4.5 mm lens, what lens do you recommend (we prefer 
bigger than 4.5 focal lens)?
 
 I'm looking forward hearing from you.
Elham


 


On Monday, August 29, 2016 9:53 PM, Olga Filippova 
support-list@support.elphel.com wrote:

 

 Dear Elham,



can you please explain the technical reasons for ordering inline camera? It 
looks like you plan to use Inline camera as 2 stereo cameras with 2 different 
bases. This is fine, but it has been done before, while the H-camera presents 
interesting research opportunities. 

Practically speaking we offer 4.5mm lenses (custom adjustment has been made to 
fit this lens to the camera, using 3 different adapter rings, as can be seen 
here: http://www3.elphel.com/importwiki?title=File:N125B04530W_adapter.jpeg) 
But we do not offer any 9 mm lenses - we have not tested any of 9mm lenses and 
we don't have these in stock, however you are welcome to purchase such lenses 
separately and install them on the camera.


I am researching the exporting regulations to Iran. I think we can ship our 
camera products to Iran, but I need to receive answers from the exporting 
agency, to make sure.


We offer standard 48V power supply that converts AC power from wall outlet to 
48V DC power. The camera uses 3.3V, but the power supply has to be minimum 12V, 
or 18V better, especially for camera with 4 image sensors. You can power the 
camera from the boat power supply. For development it is nice to have a wall 
adapter, like the 48 V AC-DC converter we offer (or you can use the one you 
already have or can purchase locally).


Best Regards,



On Sun, Aug 28, 2016 at 12:55 AM, Elham Omrani elh.omr...@yahoo.com 
wrote:
Hello Olga,
Thank you for your attention to this matter. Yes, I remember, but Contrary to 
my opinion, my supervisor emphasis on purchasing Inline model. Therefore we 
decide to order inline model. so please quote for inline model, with 22 cm 
inner baseline(for inner lenses )  with 4.5 mm lens, and 44 cm outer baseline 
with 9 mm lens. 
We want to ship the camera to Iran. Do you send the camera with DHL post?
 According to your website, the required power for the 10393 system board is 
3.3 VDC (http://wiki.elphel.com/index. php?title=10393) and Why do you use 48 v 
power supply ? what is required power for the camera? we have 12 VDC and 20-30 
VDC(variable) on our robot, is it suitable for the camera? or we must purchase 
48 v power supply ?
I'm looking forward hearing from you.

Re: [Elphel-support] Ordering stereo camera

[Elham Omrani]

Hello Olga,
Thank you for your attention to this matter. Yes, I remember, but Contrary to 
my opinion, my supervisor emphasis on purchasing Inline model. Therefore we 
decide to order inline model. so please quote for inline model, with 22 cm 
inner baseline(for inner lenses )  with 4.5 mm lens, and 44 cm outer baseline 
with 9 mm lens. 
We want to ship the camera to Iran. Do you send the camera with DHL post?
 According to your website, the required power for the 10393 system board is 
3.3 VDC (http://wiki.elphel.com/index.php?title=10393) and Why do you use 48 v 
power supply ? what is required power for the camera? we have 12 VDC and 20-30 
VDC(variable) on our robot, is it suitable for the camera? or we must purchase 
48 v power supply ?
I'm looking forward hearing from you.
Elham 

On Monday, August 1, 2016 10:32 AM, support-list 
 wrote:
 

 Dear Elham,

The most flexible solution will be something like this - 
http://blog.elphel.com/wp-content/uploads/2016/05/nc-393-printed-H-.jpeg , you 
will be able to change configuration if you'll need to.

You can run opencv in the camera (not possible in the older NC353), but it will 
not be probably fast enough. On the other hand we plan to add more configurable 
image correlation processing into the FPGA (here id the block diagram of the 
current FPGA code), so you will be able to start with the external computer 
processing and later (probably in a year) to do some correlation in the camera 
in real time.

Andrey



 On Sun, 31 Jul 2016 22:37:44 -0700 Elham Omrani 
wrote  

Dear Andrey,Thanks for your good reply.My project is navigation and obstacle 
avoidance of a boat in outdoor. so I want to help me in choosing proper stereo 
camera.We want to use Opencv program.Yes, this program can use color or 
monochrome images.SinserlyElham 

On Monday, August 1, 2016 9:50 AM, support-list 
 wrote:
 

 Dear Elpham,

There are many other issues that need to be considered when you select 
configuration of the stereo camera
What type of objects you need to measure, their angular size
What resolution do you need - angular and in distance
What software are you going to use - what kinds of lens distortions it can 
tolerate/compensate?
Does this software use color or monochrome images?
And many more

I would also recommend trying more than just 2 sensors - our experience 
indicates that it is much easier to avoid ambiguity before doing any feature 
extraction by just combining 3 or 4 images instead of 2.

Andrey



 On Sun, 31 Jul 2016 22:03:09 -0700 Elham Omrani 
wrote  

Dear Andrey,
Thank you for your kindly answering and suggestion. I think NC353 camera with 
5MPix resolution is enough for me(because of high speed of algorithm). in my 
project i need to see the depth of 50 meters(max).In your opinion is it 
possible? And the parameters of  focal length and angle of view in what range 
should be? Elham 




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Support-list@support.elphel.com 
http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com 





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http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com

Re: [Elphel-support] Ordering stereo camera

[Olga Filippova]

Dear Elham,
I have replied you with the quotations attached, from sales support e-mail.
There is commercial information not related to the technical aspects of the
camera.
Best Regards,

On Fri, Aug 26, 2016 at 10:15 AM, Elham Omrani  wrote:

> Dear Olga,
> Thank you for providing the requested information.
> I am in a hurry in my project. please answer me as soon as possible.
> Best Regards
> Elham
>
>
> On Monday, August 1, 2016 10:32 AM, support-list <
> support-list@support.elphel.com> wrote:
>
>
> Dear Elham,
>
> The most flexible solution will be something like this -
> http://blog.elphel.com/wp-content/uploads/2016/05/nc-393-printed-H-.jpeg
> , you will be able to change configuration if you'll need to.
>
> You can run opencv in the camera (not possible in the older NC353), but it
> will not be probably fast enough. On the other hand we plan to add more
> configurable image correlation processing into the FPGA (here id the block
> diagram of the current FPGA code), so you will be able to start with the
> external computer processing and later (probably in a year) to do some
> correlation in the camera in real time.
>
> Andrey
>
>
>
>  On Sun, 31 Jul 2016 22:37:44 -0700 *Elham
> Omrani>* wrote 
>
> Dear Andrey,
> Thanks for your good reply.
> My project is navigation and obstacle avoidance of a boat in outdoor. so I
> want to help me in choosing proper stereo camera.
> We want to use Opencv program.
> Yes, this program can use color or monochrome images.
> Sinserly
> Elham
>
>
> On Monday, August 1, 2016 9:50 AM, support-list <
> support-list@support.elphel.com> wrote:
>
>
> Dear Elpham,
>
> There are many other issues that need to be considered when you select
> configuration of the stereo camera
> What type of objects you need to measure, their angular size
> What resolution do you need - angular and in distance
> What software are you going to use - what kinds of lens distortions it can
> tolerate/compensate?
> Does this software use color or monochrome images?
> And many more
>
> I would also recommend trying more than just 2 sensors - our experience
> indicates that it is much easier to avoid ambiguity before doing any
> feature extraction by just combining 3 or 4 images instead of 2.
>
> Andrey
>
>
>
>  On Sun, 31 Jul 2016 22:03:09 -0700 *Elham
> Omrani>* wrote 
>
> Dear Andrey,
>
> Thank you for your kindly answering and suggestion. I think NC353 camera
> with 5MPix resolution is enough for me(because of high speed of algorithm)
> .
> in my project i need to see the depth of 50 meters(max).In your opinion is
> it possible? And the parameters of  focal length and angle of view in what
> range should be?
>  Elham
>
>
>
>
> ___
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> Support-list@support.elphel.com
> http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com
>
>
>
>
>
>
> ___
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> Support-list@support.elphel.com
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>
>
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Re: [Elphel-support] Ordering stereo camera

[Elham Omrani]

Hello Olga,I apologize for delay. I must consult with my supervisor. According 
to our calculations, baseline 22 cm and focal lens 4.5 mm is suitable for inner 
cameras and for outer cameras we need larger focal length and we don't know 
exactly what kinds of lenses do you have for this purpose? because we want to 
use inner cameras in 4-20 meters, and outer camera in 20-100 meters(on your 
opinion what kind of lenses is suitable for 20-100 meters?).
 My supervisor emphasis on waterproofing, he said that H-model or Inline model 
that is waterproofing is appropriate for ours. Now, on your opinion, when is 
H-model waterproof enclosure ready?my friend lives in Georgia, can you send 
camera for her? how long does it take to get to her?

I looking forward hearing from you.
Best Regards Elham

   

 On Saturday, August 20, 2016 12:30 AM, Olga Filippova 
 wrote:
 

 Hello Elham,
all camera models made with 3D-printed parts are just examples of the possible 
configurations. We offer our clients the freedom to modify camera configuration 
based on their needs and application. The camera with 4 sensors can be arranged 
in any way you  want to design it. It is also possible to purchase the example 
Inline camera. It has a fixed baseline of 250mm, but it can be larger, limited 
only by the cable length. The longest cable we offer is 450 mm, so the largest 
baseline could be something like 700mm.
Please note that we are working on the waterproof camera body for the H-camera, 
not the Inline camera.

The 4 image sensors are synchronized and are taking images simultaneously.

The lens we offer is Evetar, N125B04530WR1 with EFL=4.5mm, the focus is fixed 
on infinity. http://www3.elphel.com/ accessories
You can also choose your own lens (C or CS mount, or M12 mount).

Best Regards,
On Thu, Aug 18, 2016 at 2:24 PM, Elham Omrani  wrote:

Hello Olga,Thank you for your guidance.I have a few questions: In this Model 
(Inline model) is the baseline  variable?
In this system, are two cameras (or all of them) used at the same time?
Does the lens have focus?
Kind Regards
Elham


On Thursday, August 18, 2016 8:00 PM, Olga Filippova 
 wrote:
 

 Hello Elham,
yes it will be possible to order the Inline model stereo camera with 4 sensors. 
As Andrey have mentioned, Elphel cameras are Free Software and Open Hardware 
and are distributed under GNU GPL license http://www.gnu.org/licenses/ gpl.html 
and CERN OHL http://www.ohwr.org/projects/ cernohl

 We would like to sponsor your project and follow it on Github repository (for 
example), or Sourceforge or Bitbucket with sources available for download. Here 
is an example of another project which had used Elphel cameras for their 
robots: https://bitbucket.org/ scinirov/scini/src/ 
66a3b41e2763737dfa6ae5aab79a38 b86674d702/build/source/?at= master

 We have started designing the waterproof camera body, and some parts can be 
3D-printed, however some parts we will order to be machined. Finishing the 
design, manufacturing parts, assembling and testing will take some time. Maybe 
you can make waterproof case faster. We will upload the parts for waterproof 
body as Open Hardware once it is ready, and you are welcome to share your 
design as well.

Please let me know how would you like to proceed with the order, and if you 
will have any other questions.

Best Regards,

Olga

On Tue, Aug 16, 2016 at 11:21 PM, Elham Omrani  wrote:

Hello Andrey,Thank  you for your detailed explanation. Ok, we can design 
waterproof enclosure for camera. Is it possible for me to order Stereo camera 
with 4 sensors Inline Model instead of H Model? because it is very suitable for 
ours.Kind Regards 

On Wednesday, August 17, 2016 7:05 AM, Elphel Support 
 wrote:
 

 Hello Elham,

As I wrote you earlier - we do not have any waterproof camera, the only 
weatherproof (they withstand rain but can not go underwater) we manufacture is 
Eyesis4pi (it is more expensive device).

Our users were able to use Elphel cameras deep under water (see project SCINI 
-https://www.google.com/ search?q=scini ), but it is their design, not ours. We 
provide open hardware cameras so you can download all our design files and 
develop the additions required for your particular application, and if your 
design is open too (so others can use your CAD files, software under acceptable 
FLOSS license) we may provide discounts (as I wrote earlier).

We may develop some weather-proof H-camera ourselves, especially if there will 
be customers eager to pay for such product. But I can not promise to put all 
our work aside do develop such new hardware - we can do it only in our spare 
time (which currently we do not have). Your team has at least twice more 
members than we have at Elphel, so you can develop mechanical parts yourself 
(as other users do) faster (and less expensive too) - we can 

Re: [Elphel-support] Ordering stereo camera

[Olga Filippova]

Hello Elham,
all camera models made with 3D-printed parts are just examples of the
possible configurations. We offer our clients the freedom to modify camera
configuration based on their needs and application. The camera with 4
sensors can be arranged in any way you  want to design it. It is also
possible to purchase the example Inline camera. It has a fixed baseline of
250mm, but it can be larger, limited only by the cable length. The longest
cable we offer is 450 mm, so the largest baseline could be something like
700mm.
Please note that we are working on the waterproof camera body for the
H-camera, not the Inline camera.

The 4 image sensors are synchronized and are taking images simultaneously.

The lens we offer is Evetar, N125B04530WR1 with EFL=4.5mm, the focus is
fixed on infinity. http://www3.elphel.com/accessories
You can also choose your own lens (C or CS mount, or M12 mount).

Best Regards,

On Thu, Aug 18, 2016 at 2:24 PM, Elham Omrani  wrote:

> Hello Olga,
> Thank you for your guidance.I have a few questions: In this Model (Inline
> model) is the baseline  variable?
> In this system, are two cameras (or all of them) used at the same time?
> Does the lens have focus?
> Kind Regards
>
> Elham
>
>
> On Thursday, August 18, 2016 8:00 PM, Olga Filippova <
> support-list@support.elphel.com> wrote:
>
>
> Hello Elham,
> yes it will be possible to order the Inline model stereo camera with 4
> sensors.
> As Andrey have mentioned, Elphel cameras are Free Software and Open
> Hardware and are distributed under GNU GPL license
> http://www.gnu.org/licenses/gpl.html and CERN OHL
> http://www.ohwr.org/projects/cernohl
>
>  We would like to sponsor your project and follow it on Github repository
> (for example), or Sourceforge or Bitbucket with sources available for
> download. Here is an example of another project which had used Elphel
> cameras for their robots: https://bitbucket.org/scinirov/scini/src/
> 66a3b41e2763737dfa6ae5aab79a38b86674d702/build/source/?at=master
>
> We have started designing the waterproof camera body, and some parts can
> be 3D-printed, however some parts we will order to be machined. Finishing
> the design, manufacturing parts, assembling and testing will take some
> time. Maybe you can make waterproof case faster. We will upload the parts
> for waterproof body as Open Hardware once it is ready, and you are welcome
> to share your design as well.
>
> Please let me know how would you like to proceed with the order, and if
> you will have any other questions.
>
> Best Regards,
>
> Olga
>
>
> On Tue, Aug 16, 2016 at 11:21 PM, Elham Omrani 
> wrote:
>
> Hello Andrey,
> Thank  you for your detailed explanation. Ok, we can design waterproof
> enclosure for camera. Is it possible for me to order Stereo camera with 4
> sensors Inline Model instead of H Model? because it is very suitable for
> ours.
> Kind Regards
>
>
> On Wednesday, August 17, 2016 7:05 AM, Elphel Support 
>  com > wrote:
>
>
> Hello Elham,
>
> As I wrote you earlier - we do not have any waterproof camera, the only
> weatherproof (they withstand rain but can not go underwater) we manufacture
> is Eyesis4pi (it is more expensive device).
>
> Our users were able to use Elphel cameras deep under water (see project
> SCINI -https://www.google.com/ search?q=scini
>  ), but it is their design, not
> ours. We provide open hardware cameras so you can download all our design
> files and develop the additions required for your particular application,
> and if your design is open too (so others can use your CAD files, software
> under acceptable FLOSS license) we may provide discounts (as I wrote
> earlier).
>
> We may develop some weather-proof H-camera ourselves, especially if there
> will be customers eager to pay for such product. But I can not promise to
> put all our work aside do develop such new hardware - we can do it only in
> our spare time (which currently we do not have). Your team has at least
> twice more members than we have at Elphel, so you can develop mechanical
> parts yourself (as other users do) faster (and less expensive too) - we can
> definitely help you with consultations and tell if we think your design
> will work, what potential problems it may have.
>
> Andrey
>
>  On Fri, 12 Aug 2016 06:03:26 -0700 *Elham
> Omrani>* wrote 
>
> Hello Andrey,
> The longest of your cable is very good.
> because this camera will be used in outdoor condition, it is very
> important that it is waterproof.  can you design  H-camera with
> environmental protection?
> How will send us? and how many days does it take?
>
>
>
>
>
>
> __ _
> Support-list mailing list
> Support-list@support.elphel. com 
> http://support.elphel.com/ mailman/listinfo/support-list_

Re: [Elphel-support] Ordering stereo camera

[Elphel Support List]

Hello Elham,
all camera models made with 3D-printed parts are just examples of the possible 
configurations. We offer our clients the freedom to modify the camera 
configuration based on their needs and application. The camera with 4 sensors 
can be arranged in any way you will design it. The example Inline camera has a 
fixed baseline of 250mm, but it can be larger, limited only by the cable 
length. The longest cable we offer is 450 mm.

We are working on the waterproof camera body for the H-camera, not the Inline 
camera. 

The 4 image sensors are synchronized and are taking images simultaneously.

The lens we offer is Evetar, N125B04530WR1 with EFL=4.5mm, the focus is fixed 
on infinity. http://www3.elphel.com/accessories
You can also choose your own lens (C or CS mount, or M12 mount).

Best Regards,

___
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Support-list@support.elphel.com
http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com

Re: [Elphel-support] Ordering stereo camera

[Olga Filippova]

Hello Elham,
yes it will be possible to order the Inline model stereo camera with 4
sensors.
As Andrey have mentioned, Elphel cameras are Free Software and Open
Hardware and are distributed under GNU GPL license
http://www.gnu.org/licenses/gpl.html and CERN OHL
http://www.ohwr.org/projects/cernohl

 We would like to sponsor your project and follow it on Github repository
(for example), or Sourceforge or Bitbucket with sources available for
download. Here is an example of another project which had used Elphel
cameras for their robots:
https://bitbucket.org/scinirov/scini/src/66a3b41e2763737dfa6ae5aab79a38b86674d702/build/source/?at=master

We have started designing the waterproof camera body, and some parts can be
3D-printed, however some parts we will order to be machined. Finishing the
design, manufacturing parts, assembling and testing will take some time.
Maybe you can make waterproof case faster. We will upload the parts for
waterproof body as Open Hardware once it is ready, and you are welcome to
share your design as well.

Please let me know how would you like to proceed with the order, and if you
will have any other questions.

Best Regards,

Olga


On Tue, Aug 16, 2016 at 11:21 PM, Elham Omrani  wrote:

> Hello Andrey,
> Thank  you for your detailed explanation. Ok, we can design waterproof
> enclosure for camera. Is it possible for me to order Stereo camera with 4
> sensors Inline Model instead of H Model? because it is very suitable for
> ours.
> Kind Regards
>
>
> On Wednesday, August 17, 2016 7:05 AM, Elphel Support <
> support-list@support.elphel.com> wrote:
>
>
> Hello Elham,
>
> As I wrote you earlier - we do not have any waterproof camera, the only
> weatherproof (they withstand rain but can not go underwater) we manufacture
> is Eyesis4pi (it is more expensive device).
>
> Our users were able to use Elphel cameras deep under water (see project
> SCINI -https://www.google.com/search?q=scini ), but it is their design,
> not ours. We provide open hardware cameras so you can download all our
> design files and develop the additions required for your particular
> application, and if your design is open too (so others can use your CAD
> files, software under acceptable FLOSS license) we may provide discounts
> (as I wrote earlier).
>
> We may develop some weather-proof H-camera ourselves, especially if there
> will be customers eager to pay for such product. But I can not promise to
> put all our work aside do develop such new hardware - we can do it only in
> our spare time (which currently we do not have). Your team has at least
> twice more members than we have at Elphel, so you can develop mechanical
> parts yourself (as other users do) faster (and less expensive too) - we can
> definitely help you with consultations and tell if we think your design
> will work, what potential problems it may have.
>
> Andrey
>
>  On Fri, 12 Aug 2016 06:03:26 -0700 *Elham
> Omrani>* wrote 
>
> Hello Andrey,
> The longest of your cable is very good.
> because this camera will be used in outdoor condition, it is very
> important that it is waterproof.  can you design  H-camera with
> environmental protection?
> How will send us? and how many days does it take?
>
>
>
>
>
>
> ___
> Support-list mailing list
> Support-list@support.elphel.com
> http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com
>
>
___
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Support-list@support.elphel.com
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Re: [Elphel-support] Ordering stereo camera

[Elham Omrani]

Hello Andrey,Thank  you for your detailed explanation. Ok, we can design 
waterproof enclosure for camera. Is it possible for me to order Stereo camera 
with 4 sensors Inline Model instead of H Model? because it is very suitable for 
ours.Kind Regards 

On Wednesday, August 17, 2016 7:05 AM, Elphel Support 
 wrote:
 

 Hello Elham,

As I wrote you earlier - we do not have any waterproof camera, the only 
weatherproof (they withstand rain but can not go underwater) we manufacture is 
Eyesis4pi (it is more expensive device).

Our users were able to use Elphel cameras deep under water (see project SCINI 
-https://www.google.com/search?q=scini ), but it is their design, not ours. We 
provide open hardware cameras so you can download all our design files and 
develop the additions required for your particular application, and if your 
design is open too (so others can use your CAD files, software under acceptable 
FLOSS license) we may provide discounts (as I wrote earlier).

We may develop some weather-proof H-camera ourselves, especially if there will 
be customers eager to pay for such product. But I can not promise to put all 
our work aside do develop such new hardware - we can do it only in our spare 
time (which currently we do not have). Your team has at least twice more 
members than we have at Elphel, so you can develop mechanical parts yourself 
(as other users do) faster (and less expensive too) - we can definitely help 
you with consultations and tell if we think your design will work, what 
potential problems it may have.

Andrey

 On Fri, 12 Aug 2016 06:03:26 -0700 Elham Omrani 
wrote  

Hello Andrey,The longest of your cable is very good.because this camera will be 
used in outdoor condition, it is very important that it is waterproof.  can you 
design  H-camera with environmental protection?How will send us? and how many 
days does it take?





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Support-list@support.elphel.com
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Re: [Elphel-support] Ordering stereo camera

[Elphel Support]

Hello Elham,

As I wrote you earlier - we do not have any waterproof camera, the only 
weatherproof (they withstand rain but can not go underwater) we manufacture is 
Eyesis4pi (it is more expensive device).

Our users were able to use Elphel cameras deep under water (see project SCINI 
-https://www.google.com/search?q=scini ), but it is their design, not ours. We 
provide open hardware cameras so you can download all our design files and 
develop the additions required for your particular application, and if your 
design is open too (so others can use your CAD files, software under acceptable 
FLOSS license) we may provide discounts (as I wrote earlier).

We may develop some weather-proof H-camera ourselves, especially if there will 
be customers eager to pay for such product. But I can not promise to put all 
our work aside do develop such new hardware - we can do it only in our spare 
time (which currently we do not have). Your team has at least twice more 
members than we have at Elphel, so you can develop mechanical parts yourself 
(as other users do) faster (and less expensive too) - we can definitely help 
you with consultations and tell if we think your design will work, what 
potential problems it may have.

Andrey

 On Fri, 12 Aug 2016 06:03:26 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Hello Andrey,
The longest of your cable is very good.
because this camera will be used in outdoor condition, it is very important 
that it is waterproof.  can you design  H-camera with environmental protection?
How will send us? and how many days does it take?










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Re: [Elphel-support] Ordering stereo camera

[Andrey Filippov]

Hello Elham 

1. The longest cable we have (from the system board to the sensor front end) is 
450mm. 
2. No, camera is not waterproof. The only cameras we have with environmental 
protection (can withstand rain) is Eyesis4pi. For other cameras our users made 
their own enclosures. 
Using 3-d printing technology it is not that difficult to make such enclosure, 
we may design a version of H-camera with environmental protection, but it is 
not something we already have. 
3. There are many different lenses available, the lenses we use most often are 
low-distortion f=4.5mm F#3.0 - they give approximately 60x45 degrees FOV. 
Here are some samples made with these lenses (http://community.elphel.com/files 
/phg3/index.php ), but these are post-processed, not raw images. Images are 
made with 3 cameras, 60 mm apart. 

Andrey 

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Re: [Elphel-support] Ordering stereo camera

[support-list]

Dear Elham,

Elphel is a small company, and all our funds come from the product sales - we 
do not use any government funding, private investments or crowdfunding. Our 
margin is lower than 50%, so such discount means that we already pay more for 
the components than receive for the camera sale.

That is OK, we do sometimes donate to interesting projects, but right now we 
are still in the process of upgrading to the new line of the cameras, that 
involves rather expensive RD that does not pay back immediately. We use 
now all the available resources to shorten the transition time, it is going 
well so far, but still there is work to be done.

We may consider donating to interesting projects in the future, but right now 
it is all what we can afford to offer.

As for the brochure - we do not yet have any for the new camera, all the 
information we have ourselves is posted online. Code is on Github 
(https://github.com/Elphel),  more information on our wiki 
(http://wiki.elphel.com/index.php?title=10393 , 
http://wiki.elphel.com/index.php?title=Poky_2.0_manual, ) more picture in the 
blog post - http://blog.elphel.com/2016/05/3d-print-your-camera-freedom/

Here - http://wiki.elphel.com/index.php?title=Elphel_camera_assemblies (the 
link is on our home page) you can take our camera apart and look at each 
component (all components have CAD files on our wiki - files you can use to 
build the parts).

Andrey

 On Tue, 02 Aug 2016 08:15:32 -0700 Elham Omrani 
elh.omr...@yahoo.com wrote  

Dear Andrey,
Thank you for your excellent suggestion. we will be very happy if you 
contribute in this project. could you please raise the percent of your 
sponsorship? furthermore, is it possible to send us the NC393-H brochure?

we are sincerely grateful for your contribution

Elham






   

 

 Dear Elham,

Your project seems very interesting.  We can sponsor 50% of the cost of the 
NC393-H for your team and provide additional technical support. Will the result 
of your research be open for others to reproduce?

Andrey

 On Mon, 01 Aug 2016 01:27:18 -0700 Elham Omrani 
elh.omr...@yahoo.com wrote  

Dear Andrey
I'm PhD student and in my thesis is "Implementation of stereo vision system for 
obstacle detection in solar boat"
this is my website:http://emorvarid.ut.ac.ir/Members.htm
 
Elham




On Monday, August 1, 2016 11:27 AM, support-list 
support-list@support.elphel.com wrote:

 

 Dear Elham,

What kind of project is it ? Is it a personal, commercial, student/Ph.D 
research, something else? We did sponsor some interesting projects before and 
we plan to resume it with the new cameras starting this Fall.

Andrey

 On Sun, 31 Jul 2016 23:29:40 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Dear Andrey,
Thank you for good guidance and suggestion. in your website, you have explained 
that this camera can be develop by c++ and opencv is one of c++ libraries.
NC393-H camera is very expensive for me.

Sinserly
Elham
 


On Monday, August 1, 2016 10:32 AM, support-list 
support-list@support.elphel.com wrote:

 

 Dear Elham,

The most flexible solution will be something like this - 
http://blog.elphel.com/wp-content/uploads/2016/05/nc-393-printed-H-.jpeg , you 
will be able to change configuration if you'll need to.

You can run opencv in the camera (not possible in the older NC353), but it will 
not be probably fast enough. On the other hand we plan to add more configurable 
image correlation processing into the FPGA (here id the block diagram of the 
current FPGA code), so you will be able to start with the external computer 
processing and later (probably in a year) to do some correlation in the camera 
in real time.

Andrey



 On Sun, 31 Jul 2016 22:37:44 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Dear Andrey,
Thanks for your good reply.
My project is navigation and obstacle avoidance of a boat in outdoor. so I want 
to help me in choosing proper stereo camera.
We want to use Opencv program.
Yes, this program can use color or monochrome images.
Sinserly
Elham
 


On Monday, August 1, 2016 9:50 AM, support-list 
support-list@support.elphel.com wrote:

 

 Dear Elpham,

There are many other issues that need to be considered when you select 
configuration of the stereo camera
What type of objects you need to measure, their angular size
What resolution do you need - angular and in distance
What software are you going to use - what kinds of lens distortions it can 
tolerate/compensate?
Does this software use color or monochrome images?
And many more

I would also recommend trying more than just 2 sensors - our experience 
indicates that it is much easier to avoid ambiguity before doing any feature 
extraction by just combining 3 or 4 images instead of 2.

Andrey



 On Sun, 31 Jul 2016 22:03:09 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  


Dear Andrey,


Thank you for your kindly answering and suggestion. I think NC353 camera with 
5MPix resolution is enough for 

Re: [Elphel-support] Ordering stereo camera

[support-list]

Dear Elham,

Your project seems very interesting.  We can sponsor 50% of the cost of the 
NC393-H for your team and provide additional technical support. Will the result 
of your research be open for others to reproduce?

Andrey

 On Mon, 01 Aug 2016 01:27:18 -0700 Elham Omrani 
elh.omr...@yahoo.com wrote  

Dear Andrey
I'm PhD student and in my thesis is "Implementation of stereo vision system for 
obstacle detection in solar boat"
this is my website:http://emorvarid.ut.ac.ir/Members.htm
 
Elham




On Monday, August 1, 2016 11:27 AM, support-list 
support-list@support.elphel.com wrote:

 

 Dear Elham,

What kind of project is it ? Is it a personal, commercial, student/Ph.D 
research, something else? We did sponsor some interesting projects before and 
we plan to resume it with the new cameras starting this Fall.

Andrey

 On Sun, 31 Jul 2016 23:29:40 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Dear Andrey,
Thank you for good guidance and suggestion. in your website, you have explained 
that this camera can be develop by c++ and opencv is one of c++ libraries.
NC393-H camera is very expensive for me.

Sinserly
Elham
 


On Monday, August 1, 2016 10:32 AM, support-list 
support-list@support.elphel.com wrote:

 

 Dear Elham,

The most flexible solution will be something like this - 
http://blog.elphel.com/wp-content/uploads/2016/05/nc-393-printed-H-.jpeg , you 
will be able to change configuration if you'll need to.

You can run opencv in the camera (not possible in the older NC353), but it will 
not be probably fast enough. On the other hand we plan to add more configurable 
image correlation processing into the FPGA (here id the block diagram of the 
current FPGA code), so you will be able to start with the external computer 
processing and later (probably in a year) to do some correlation in the camera 
in real time.

Andrey



 On Sun, 31 Jul 2016 22:37:44 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Dear Andrey,
Thanks for your good reply.
My project is navigation and obstacle avoidance of a boat in outdoor. so I want 
to help me in choosing proper stereo camera.
We want to use Opencv program.
Yes, this program can use color or monochrome images.
Sinserly
Elham
 


On Monday, August 1, 2016 9:50 AM, support-list 
support-list@support.elphel.com wrote:

 

 Dear Elpham,

There are many other issues that need to be considered when you select 
configuration of the stereo camera
What type of objects you need to measure, their angular size
What resolution do you need - angular and in distance
What software are you going to use - what kinds of lens distortions it can 
tolerate/compensate?
Does this software use color or monochrome images?
And many more

I would also recommend trying more than just 2 sensors - our experience 
indicates that it is much easier to avoid ambiguity before doing any feature 
extraction by just combining 3 or 4 images instead of 2.

Andrey



 On Sun, 31 Jul 2016 22:03:09 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  


Dear Andrey,


Thank you for your kindly answering and suggestion. I think NC353 camera with 
5MPix resolution is enough for me(because of high speed of algorithm). 
in my project i need to see the depth of 50 meters(max).In your opinion is it 
possible? And the parameters of  focal length and angle of view in what range 
should be?
 Elham
 













 
 
 

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Support-list@support.elphel.com 
http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com 











 
 
 

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Re: [Elphel-support] Ordering stereo camera

[support-list]

Dear Elham,

The most flexible solution will be something like this - 
http://blog.elphel.com/wp-content/uploads/2016/05/nc-393-printed-H-.jpeg , you 
will be able to change configuration if you'll need to.

You can run opencv in the camera (not possible in the older NC353), but it will 
not be probably fast enough. On the other hand we plan to add more configurable 
image correlation processing into the FPGA (here id the block diagram of the 
current FPGA code), so you will be able to start with the external computer 
processing and later (probably in a year) to do some correlation in the camera 
in real time.

Andrey



 On Sun, 31 Jul 2016 22:37:44 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Dear Andrey,
Thanks for your good reply.
My project is navigation and obstacle avoidance of a boat in outdoor. so I want 
to help me in choosing proper stereo camera.
We want to use Opencv program.
Yes, this program can use color or monochrome images.
Sinserly
Elham
 


On Monday, August 1, 2016 9:50 AM, support-list 
support-list@support.elphel.com wrote:

 

 Dear Elpham,

There are many other issues that need to be considered when you select 
configuration of the stereo camera
What type of objects you need to measure, their angular size
What resolution do you need - angular and in distance
What software are you going to use - what kinds of lens distortions it can 
tolerate/compensate?
Does this software use color or monochrome images?
And many more

I would also recommend trying more than just 2 sensors - our experience 
indicates that it is much easier to avoid ambiguity before doing any feature 
extraction by just combining 3 or 4 images instead of 2.

Andrey



 On Sun, 31 Jul 2016 22:03:09 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  


Dear Andrey,


Thank you for your kindly answering and suggestion. I think NC353 camera with 
5MPix resolution is enough for me(because of high speed of algorithm). 
in my project i need to see the depth of 50 meters(max).In your opinion is it 
possible? And the parameters of  focal length and angle of view in what range 
should be?
 Elham
 













 
 
 

___ 
Support-list mailing list 
Support-list@support.elphel.com 
http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com 







___
Support-list mailing list
Support-list@support.elphel.com
http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com

Re: [Elphel-support] Ordering stereo camera

[support-list]

Dear Elpham,

There are many other issues that need to be considered when you select 
configuration of the stereo camera
What type of objects you need to measure, their angular size
What resolution do you need - angular and in distance
What software are you going to use - what kinds of lens distortions it can 
tolerate/compensate?
Does this software use color or monochrome images?
And many more

I would also recommend trying more than just 2 sensors - our experience 
indicates that it is much easier to avoid ambiguity before doing any feature 
extraction by just combining 3 or 4 images instead of 2.

Andrey



 On Sun, 31 Jul 2016 22:03:09 -0700 Elham 
Omranielh.omr...@yahoo.com wrote  

Dear Andrey,


Thank you for your kindly answering and suggestion. I think NC353 camera with 
5MPix resolution is enough for me(because of high speed of algorithm). 
in my project i need to see the depth of 50 meters(max).In your opinion is it 
possible? And the parameters of  focal length and angle of view in what range 
should be?
 Elham
 






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Support-list mailing list
Support-list@support.elphel.com
http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com

Re: [Elphel-support] Ordering stereo camera

[support-list]

Hello Elham,

Thank you for your interest. We have several versions of stereo-cameras, 
different lenses are possible (that together with the distance between lenses 
define other parameters you were asking for). The only "constant" part now is 
the sensor. For both NC353 and new NC393-based cameras it is 5MPix MT9P006 
(http://www.onsemi.com/pub_link/Collateral/MT9P006-D.PDF). With NC393 it is 
possible to use additionally newer 14 MPix MT9F002 
(http://www.onsemi.com/pub_link/Collateral/MT9F002-D.PDF) - both have the same 
physical size, just different resolution and 14MPix is significantly less 
sensitive.

These cameras do not have environmental protection, if you want to mount them 
outdoors, you will need to have some enclosure to protect them (especially the 
lenses) from weather conditions.

Andrey

 On Sun, 31 Jul 2016 11:58:57 -0700 Elham Omrani 
elh.omr...@yahoo.com wrote  

Hello,
i want to order a NC353L-STEREO camera. before that I want to ask some 
questions:
what is the minimum and maximum depth  (z) in this camera?

what is the focal length( or angle of view) of the lenses?
What is the size of the CMOS chip?

can we use it in outdoor?
is it possible for you to change  some parameters such Baseline,  interface or 
focal length of lenses? in this case, is the price changes?






kind regards
Elham









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Support-list@support.elphel.com
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