Bump. With the new GoPro Hero 3 having a 240fps frame rate in WVGA means this is actually a potential solution. Vertical resolution at 480 pixels, but I don't think that matters much with a horizontal resolution fast enough. So, the question is, is 240fps fast enough?
Here's a thread I've been following over on POTN that has some free software for pulling slit functionality out of digital video, and a "bike" scan from a Hero 3... but at a pretty slow speed.
http://photography-on-the.net/forum/...6#post16228406
I ran the numbers at 38mph and discovered that a rider would be moving 7cm between frames. I guess another problem is that most automatic video cameras record at a shutter speed equal to the frame rate so the video looks right to the eye. If there is a way to tell the gopro to use a faster shutter speed, then maybe one shot every 7cm would be enough. Not sure how the Hero 3 video would work, but I'd like to see what a finish looks like going through this software. My thought is that since 1/240 shutter speed is not fast enough to stop motion (for 38mph, I'd be looking at 1/1000 or faster, probably 1/750 minimum)
Thoughts?