From: Lustosa <lus...@gm...> - 2010-11-06 17:06:44
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I recently got my hands on a Gumstix Overo Fire for a Computer Vision project I am currently working with. I want to process images captured from a webcam using openCV libraries (using main OMAP3 processor) and simultaneously stream non-processed webcam video over LAN (using DSP). Is that viable? Has someone already done something like this? -- View this message in context: http://old.nabble.com/Streaming-webcam-with-Gumstix-Overo-Fire-tp30149315p30149315.html Sent from the Gumstix mailing list archive at Nabble.com. |
From: Robert V. IV <ro...@io...> - 2010-11-06 17:54:30
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Hi Lustosa, It really depends on the camera, especially if the data is compressed or uncompressed. I just spent the past week writing 8 different drivers for the same freaking camera module to (finally) achieve 10fps from two HDR WVGA imagers simultaneously. Of course, I can do 60 fps on a PC just fine, but for some reason the gumstix USB has some high latency somewhere, so packets were getting dropped. If you use a compressed camera, you won't have these issues, but good luck using that for vision... Are you only trying to do one camera? What webcam are you trying to use? Does it have linux driver support? VID/PID? Thanks. Robert Vogt IV CEO IOSiX, LLC 2375 Parkwood Ave Ypsilanti, MI 48198 ro...@io... P: 734-730-9690 F: 734-482-2337 On Sat, Nov 6, 2010 at 12:06 PM, Lustosa <lus...@gm...> wrote: > > I recently got my hands on a Gumstix Overo Fire for a Computer Vision project > I am currently working with. I want to process images captured from a webcam > using openCV libraries (using main OMAP3 processor) and simultaneously > stream non-processed webcam video over LAN (using DSP). Is that viable? Has > someone already done something like this? > -- > View this message in context: http://old.nabble.com/Streaming-webcam-with-Gumstix-Overo-Fire-tp30149315p30149315.html > Sent from the Gumstix mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > The Next 800 Companies to Lead America's Growth: New Video Whitepaper > David G. Thomson, author of the best-selling book "Blueprint to a > Billion" shares his insights and actions to help propel your > business during the next growth cycle. Listen Now! > http://p.sf.net/sfu/SAP-dev2dev > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Lustosa <lus...@gm...> - 2010-11-06 18:25:56
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Hi Robert Vogt IV, That's right. I am intending to use only one camera. My idea is to store each frame in a shared memory so that both OMAP3 main CPU and the DSP can work with them. The main CPU is going to work with computer vision while DSP is going to stream these frames in some LAN. For now, I am using a GSPCA compatible cam with JPEG compression. In future, I am going to use a Point Grey cam. But I have implemented nothing so far. I want to know first if somebody has already tried this. I don't need high FPS streaming rates for my application. I wonder if it possible to do what I want to do with Gumstix. Robert Vogt IV, are you streaming the video you get from your cams? Thanks for sharing. Robert Vogt IV wrote: > > Hi Lustosa, > > It really depends on the camera, especially if the data is compressed > or uncompressed. I just spent the past week writing 8 different > drivers for the same freaking camera module to (finally) achieve 10fps > from two HDR WVGA imagers simultaneously. Of course, I can do 60 fps > on a PC just fine, but for some reason the gumstix USB has some high > latency somewhere, so packets were getting dropped. If you use a > compressed camera, you won't have these issues, but good luck using > that for vision... > > Are you only trying to do one camera? What webcam are you trying to > use? Does it have linux driver support? VID/PID? Thanks. > > > Robert Vogt IV > CEO > IOSiX, LLC > 2375 Parkwood Ave > Ypsilanti, MI 48198 > ro...@io... > P: 734-730-9690 > F: 734-482-2337 > > > > On Sat, Nov 6, 2010 at 12:06 PM, Lustosa <lus...@gm...> > wrote: >> >> I recently got my hands on a Gumstix Overo Fire for a Computer Vision >> project >> I am currently working with. I want to process images captured from a >> webcam >> using openCV libraries (using main OMAP3 processor) and simultaneously >> stream non-processed webcam video over LAN (using DSP). Is that viable? >> Has >> someone already done something like this? >> -- >> View this message in context: >> http://old.nabble.com/Streaming-webcam-with-Gumstix-Overo-Fire-tp30149315p30149315.html >> Sent from the Gumstix mailing list archive at Nabble.com. >> >> >> ------------------------------------------------------------------------------ >> The Next 800 Companies to Lead America's Growth: New Video Whitepaper >> David G. Thomson, author of the best-selling book "Blueprint to a >> Billion" shares his insights and actions to help propel your >> business during the next growth cycle. Listen Now! >> http://p.sf.net/sfu/SAP-dev2dev >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------------ > The Next 800 Companies to Lead America's Growth: New Video Whitepaper > David G. Thomson, author of the best-selling book "Blueprint to a > Billion" shares his insights and actions to help propel your > business during the next growth cycle. Listen Now! > http://p.sf.net/sfu/SAP-dev2dev > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > -- View this message in context: http://old.nabble.com/Streaming-webcam-with-Gumstix-Overo-Fire-tp30149315p30150088.html Sent from the Gumstix mailing list archive at Nabble.com. |