Re: [beagleboard] Camera solution
The C920 is very powerful compared to most web cams. I used one in a project recently, but I was not using OpenCV. On Saturday, August 29, 2015 at 8:25:29 AM UTC-5, Vassilis Mantas wrote: > > thanks for the response, > > With this particular webcam, you can set the exposure parameter through > OpenCV. > At least that's what i found out googling. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
If blur is the main issue for a cheap webcam and you can't adjust the exposure time settings manually as with an industrial cam, you could try increasing the light level (add a very bright lamp) to encourage the camera to use shorter exposure times and therefore reduce the blur of moving objects. Just a thought... -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
thanks for the response, With this particular webcam, you can set the exposure parameter through OpenCV. At least that's what i found out googling. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
As for the industrial cameras, they are really expensive. You have to consider the value of goods that are to be check as well as the risks that come with undetected failures. Industrial cameras are available for prices below 200 Euros, and lenses from major vendors are available for 100 Euros. So webcam seems my only choise right now. High resolution is not a problem for me, but blurness due to motion is a big one. The effect of motion blur can be reduced if you emply shorter integration times. Industrial cameras offer variable integration times. I do not know if the integration time of webcams can be variated. To eliminate motion blur you might also operate your illumination in pulse mode similar to a flashlight. But this requires synchronisation between the camera and the flashlight, which is missing in Webcams. Christian -- Dipl.-Ing. Christian Keck Institut für Produktionsmesstechnik Technische Universität Braunschweig Schleinitzstraße 20 D-38106 Braunschweig Telefon: (0531) 391-7026 Telefax: (0531) 391-5837 Mail: mailto://c.k...@tu-braunschweig.de Internet: http://www.iprom.tu-braunschweig.de -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
thank you for the response, I need 2-4 photos per second. The rest frames will be discarded. Resolution is not a problem as long as the pics are clear (there will be products in motion - relatevily slow). h.264 hardware encryption is vital in order for the BBB to go smoothly and the only tested camera with such characteristic is the logitech C920.( https://en.wikipedia.org/wiki/List_of_cameras_with_onboard_video_stream_encoding ). would you agree? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution for industrial use.
*It is strange but Google searching works for me:* *http://www.radiumboards.com/HD_Camera_Cape_for_BeagleBone_Black.php http://www.radiumboards.com/HD_Camera_Cape_for_BeagleBone_Black.php* Strange indeed. So strange in fact, I nearly spit soda at my screen ;) On Fri, Aug 28, 2015 at 12:27 PM, Maxim Podbereznyy lisar...@gmail.com wrote: It is strange but Google searching works for me: http://www.radiumboards.com/HD_Camera_Cape_for_BeagleBone_Black.php 27 Авг 2015 г. 18:46 пользователь katarti84 via BeagleBoard beagleboard@googlegroups.com написал: Ok, i work over a project about color sorting into food industry with less cost. I have decided to use Beaglebone Black. In order to do the color sorting i will use OpenCV. The problem that occurs is the hardware part - the camera. As far as google can tell me my only option is a webcam - via usb. (lot of options for R-Pi though) The program will only take snapshots. Than means the time it takes for a snapshot has to be minimum and same, every time. Could you suggest the best and affordable option? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution for industrial use.
try with openCV. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
On Thursday, August 27, 2015 08:10:17 'Vassilis Mantas' via BeagleBoard wrote: Ok, i work over a color sorting project in food industry with minimum cost. I have decided to use BeagleboneBlack and OpenCV. The problem occured is the camera... As far as i know (google) my only option is a usb webcam. (far more choises for RaPi). The camera will be used only for snapshots, so it shoud provide the minimum and always the same response time. I dont know if a webcam could fill these needs. Please, suggest an affordable webcam (50E is max) or other solutions. What kind of resolution do you need and what kind of frame rate do you expect to be able to process with OpenCV on the BBB? There are a lot of camera options but without knowing the expectations, it is hard to suggest anything. -- Hunyue Yau http://www.hy-research.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution for industrial use.
It is strange but Google searching works for me: http://www.radiumboards.com/HD_Camera_Cape_for_BeagleBone_Black.php 27 Авг 2015 г. 18:46 пользователь katarti84 via BeagleBoard beagleboard@googlegroups.com написал: Ok, i work over a project about color sorting into food industry with less cost. I have decided to use Beaglebone Black. In order to do the color sorting i will use OpenCV. The problem that occurs is the hardware part - the camera. As far as google can tell me my only option is a webcam - via usb. (lot of options for R-Pi though) The program will only take snapshots. Than means the time it takes for a snapshot has to be minimum and same, every time. Could you suggest the best and affordable option? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
Hello, Ok, i work over a color sorting project in food industry with minimum cost. I have decided to use BeagleboneBlack and OpenCV. The problem occured is the camera... As far as i know (google) my only option is a usb webcam. (far more choises for RaPi). The camera will be used only for snapshots, so it shoud provide the minimum and always the same response time. I dont know if a webcam could fill these needs. Please, suggest an affordable webcam (50E is max) or other solutions. A camera cape together with a quality lens would provide you with much better images than a webcam. You might use an industrial camera connected to the BeagleBoneBlack. Such a camera together with a quality lens would even be more robust. Some camera manufacturers (IDS Imaging, for instance) offer Raspberry Linux drivers for their cameras and might be able to provide you with drivers for Linux on BeagleBone, if you ask them. Christian -- Dipl.-Ing. Christian Keck Institut für Produktionsmesstechnik Technische Universität Braunschweig Schleinitzstraße 20 D-38106 Braunschweig Telefon: (0531) 391-7026 Telefax: (0531) 391-5837 Mail: mailto://c.k...@tu-braunschweig.de Internet: http://www.iprom.tu-braunschweig.de -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
I got problems using opencv if you got too use fswebcam The web if full of samples https://www.google.com/search?q=web+can+rpiie=utf-8oe=utf-8#q=+fswebcam+beaglebone+ http://www.cedtnsit.in/connectx/pdf/camera.pdf 2015-08-27 13:16 GMT-03:00 Christian Keck c.k...@tu-braunschweig.de: Hello, Ok, i work over a color sorting project in food industry with minimum cost. I have decided to use BeagleboneBlack and OpenCV. The problem occured is the camera... As far as i know (google) my only option is a usb webcam. (far more choises for RaPi). The camera will be used only for snapshots, so it shoud provide the minimum and always the same response time. I dont know if a webcam could fill these needs. Please, suggest an affordable webcam (50E is max) or other solutions. A camera cape together with a quality lens would provide you with much better images than a webcam. You might use an industrial camera connected to the BeagleBoneBlack. Such a camera together with a quality lens would even be more robust. Some camera manufacturers (IDS Imaging, for instance) offer Raspberry Linux drivers for their cameras and might be able to provide you with drivers for Linux on BeagleBone, if you ask them. Christian -- Dipl.-Ing. Christian Keck Institut für Produktionsmesstechnik Technische Universität Braunschweig Schleinitzstraße 20 D-38106 Braunschweig Telefon: (0531) 391-7026 Telefax: (0531) 391-5837 Mail: mailto://c.k...@tu-braunschweig.de Internet: http://www.iprom.tu-braunschweig.de -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Marcus de Vasconcelos Diogo da Silva Uma montanha até um cego consegue desviar,mas é nas pedras menores que nós muitas vezes tropeçamos e caimos! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
On Thu, Aug 27, 2015 at 6:37 PM, 'Vassilis Mantas' via BeagleBoard beagleboard@googlegroups.com wrote: Christian, thank you for your time. As for the industrial cameras, they are really expensive. Camera cape remains a risk as there no available published test projects and i doudt opencv compatibility. I guess typical camera modules are out of questions. Correct, as the am335x used on the bbb, doesn't have your typical camera interface... So usb is really the only option, unless you do something custom with the pru... Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Camera solution
Christian, thank you for your time. As for the industrial cameras, they are really expensive. Camera cape remains a risk as there no available published test projects and i doudt opencv compatibility. I guess typical camera modules are out of questions. (i really dont know there compatibility with BBB anyway) So webcam seems my only choise right now. High resolution is not a problem for me, but blurness due to motion is a big one. Do you have any suggestions? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
