Poor Capture on moving objects

[cdave]

I know similar questons like this were asked before, with the results blamed on the camera, but here is my problem: I have a fixed position camera and need to capture a still image with a small moving object (about 10-15mph). When I do a capture, the moving object in the image is unclear (not blurry, more like odd and even fields aren't sync'd). I know it's not the camera, because I have a digital taped copy from that camera, and it's clean when I pause the tape. I'm using a 1411 board on a p4 system. I have included two images - the first image is from a live capture, the second is the digital tape paused and then captured (to show that the camera is not at fault). The moving object in the image is a dog jumping into the water at
about the 13 foot mark on the back of the dock.
Thank you,
-Dave

[BruceAmmons]

Dave,

Actually, it is the camera. The odd and even fields are taken at different times, so they don't match up. To do this properly, you need to use a non-interlaced camera.

The reason the pause looks good is because the camera is cheating just a little bit. To eliminate the blur, it only uses the lines from the odd frame, and interpolates to create the even lines. I can duplicate the process on your live image using Corel PhotoPaint, and I get an image that looks just like your paused image. If you look closely at the paused image, you notice that some things look a little blockier and blurrier than the live image.

Bruce

[cdave]

Thanks Bruce,
Any recommendations on a color non-interlaced camera?

[BruceAmmons]

The best person to talk to about that is Robert Eastlund from Graftek. They sell all sorts of cameras and equipment that work well with NI products. You can call him at (800) 441-2118.

Bruce