Filmshooting

Shawn wrote:
Roger and I once discussed the possibility of using a sound generator to output a signal with each cycle of the WP.

Interesting. Post-processing software would analyze the sound track, and keep each video frame that follows the start of the sound-wave, independent of the frame-rate ...

mattias wrote:
i think i could write a program to capture dv to disk while recording the frame numbers of the mouse clicks in about half an hour, if somebody is willing to write the software to extract the right frames.

Actually, with the current state of the union of QT and OS X, it is easier to ...

Hi Digvid,

>does your algorithm take into account
>varying content of the frames?
>For instance, what if you have a
>lengthy run of frames that are very
>nearly black, or that are identical?

Yes, I have to distinguish between nearly identical frames, camera noise, etc., by counting frames ...

Hey Roger and DigVid

Interesting that you guys ran a frame-differencing scheme at up to 12 fps. That's the theoretical limit of my algorithm also, but by capturing at 6 fps, I am confident that I have a one-to-one transfer with no images that are slightly blurred (at the beginning or end of film ...

Thought I'd let folks know what my mac solution for the Workprinter is.

I make a raw, unsynchronized dv recording of my workprinter running at 6 fps, then post-process the resulting movie with a tool I wrote.

Since the work-printer runs at 6 fps, and my dv camera grabs at 30 fps, there are 4-5 ...