Quoting Jeff Anderson <stonejanderson@xxxxxxxxx>: > I am working on a project which requires fast image > capture speed for color 640x480 level. But I could > only get around 1.5 fps. Is it possible to increase > the fps in the software domain? > > We intend to use limited hardware (without any TV > card.. ) because finally the project will be moved > to laptops. DOes anybody get more fps using any > Video Cameras. > > I used Creative labs ct6840 USB WebCam. And the test > was run on a dual CPU (800M) 512 MB mem Linux box > (kernel 2.4.9-12smp). USB, by design, is not capable of what you need. It can transfer up to 12Mbps per controller, if you count overhead then it wil be something like 8Mbps or 1MBps. Each 640x480 frame probably needs about 3 bytes per pixel, so total is 640x480x3 = 921.6 KB, yielding 1 FPS. It all computes. For your project you need a FireWire camera. But check with FireWire people first and get their recommendation. Dmitri -- And on the eighth day, we bulldozed it.
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