----- Forwarded message from -----
Date: Mon, 07 Dec 2009 10:16:10 -0500
From: jar...@bu.edu
Reply-To: jar...@bu.edu
Subject: Re: David laserscanner
To: morphmet <morphmet_modera...@morphometrics.org>
With the David laser scanner it depends on the resolution of the camera
you will be using. The camera needs specific drivers for working in
webcam mode. The laser needs to be set as high as possible in relation
to the camera for better triangulation.
What is interesting of David is its versatility of use. Basically it is
only software (and a background calibration frame), you can use your
own set of laser, camera and stand (a rotating one will be better).
This may also be a disadvantage, requiring a good amount of effort and
ingenuity from the user to obtain an optimal configuration. There are
numerous examples in the internet of mechanized sets handcrafted by
users.
There are also some examples of scanned coins with David that seem to
show acceptable resolutions, yet these coins are often scanned with
very particular and sort of complex scanning designs.
Pablo
Quoting morphmet <morphmet_modera...@morphometrics.org>:
>
>
> -------- Original Message --------
> Subject: Re: The best 3D scanner
> Date: Wed, 02 Dec 2009 03:13:29 -0700
> From: m...@martinfriess.com
> To: morphmet <morphmet_modera...@morphometrics.org>
> References: <4b157581....@morphometrics.org>
>
> Obviously, it depends on your definition of "best": Fastest, highest
> resolution, most portable...
> The one criterion you exclude (money) is the most relevant for both
> nextengine and David.
> If cost is not a factor, then you have a lot more options in addition
> to the low-cost models you list: LDI, Breuckmann, Steinbichler,
> Konica-Minolta, non-exhaustive and in no particular order, all have
> nominal resolutions below 50 microns for the volume you're interested
> in. They are (trans)portable, just not cheap.
>
>
> Best,
> Martin
>
> Quoting morphmet <morphmet_modera...@morphometrics.org>:
>
>>
>>
>> -------- Original Message --------
>> Subject: The best 3D scanner
>> Date: Tue, 01 Dec 2009 14:38:49 -0500
>> From: jar...@bu.edu
>> To: morphmet <morphmet_modera...@morphometrics.org>
>> References: <4b156939.8060...@morphometrics.org>
>>
>> Dear friends,
>>
>> Which is the best 3D laser scanner for small structures such as frog,
>> rodent and bat skulls? These are objects with complex surfaces and a
>> length range between 20-50 mm.
>>
>> Let's say that cost is not a factor to be considered.
>>
>> There are currently three options that I am considering:
>>
>> 1) David Laser Scanner
>>
>> http://www.david-laserscanner.com/
>>
>> 2) NextEngine 3d Scanner
>>
>> https://www.nextengine.com/
>>
>> 3) Immersion RSI 3D Laser for Microscribe MX digitizer (6 df)
>>
>> http://www.microscan-3d.com/
>> http://www.3d-microscribe.com/MicroScan%20Page.htm
>>
>> All models report their maximum resolution at standard conditions, but
>> I would like to know if anyone in the forum has experience working with
>> these contraptions on small-sized skulls for geometric morphometric
>> applications, or even smaller objects such as insects or other
>> invertebrates.
>>
>> Thanks for the advice
>>
>> Pablo
>>
>> Pablo Jarrin
>> Ph. D. candidate
>> Dept. of Biology / Boston University
>> M. A. Ecology Behavior and Evolution
>> Boston Univ.
>> Director
>> Yasuni Research Station
>> Escuela de Ciencias Biológicas
>> Pont. Univ. Católica del Ecuador.
>>
>>
>>
>>
>>
>>
>> --
>> Replies will be sent to the list.
>> For more information visit http://www.morphometrics.org
>
>
>
>
>
>
> --
> Replies will be sent to the list.
> For more information visit http://www.morphometrics.org
>
>
>
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