I have used a UVC camera and other USB peripherals through a powered hub and sent the signals over WiFI for a robot, but I've launched the video stream with a slow frame rate (8 fps) and small size (320/200 pixels). If it just for streaming purposes, it works, but I am not sure you have the bandwidth for multiple cameras. Also, you can initialize additional USB ports on the BBB, but then it becomes both a load and bandwidth issue.
I am not sure why you need two cameras - Most cameras have both RGB and some infrared capability(in most there is a filter to cut out the infrared) - and some (like the Kinect) have IR as depth- Sophisticated image analysis software like OpenCV or ROS - allow you to send a composite stream to a remote station for analysis and display. You night find this useful: http://wiki.ros.org/camera1394/Tutorials/UsingMultipleIEEE1394Cameras On Thursday, October 9, 2014 3:19:08 PM UTC-7, Jon E wrote: > > Hi, > > Fwiw - I've tried a few times to capture PAL or NTSC composite video over > USB (with an easycap style adapter, various kernel versions up to the > latest 3.14-ti branch) and have never been successful. It always chokes on > the data transfer, and I believe it just can't handle the data rate for the > isochronous transfer. > > I've vaguely wondered about putting a decoder IC on a cape, and using the > PRU to process the digital (BT656?) output, but haven't got further than > just thinking about it.. > > Regards, > Jon > > > On Thursday, 9 October 2014 22:21:45 UTC+1, Peter Fearing wrote: >> >> Yes, and that's pretty much what we're thinking right now. The biggest >> challenges at this point are the possibility of having to interpret ADC >> input as a video stream (for Linux) and the need to create composite (NTSC) >> output from the Beaglebone. >> >> -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
