On Jun 17, 6:06=A0am, Nomee <farrukhsubh...@[EMAIL PROTECTED]
> wrote:
> It is possible to convert an analogue video tape into digital frames.
Obviously, otherwise, people wouldn't be converting their VHS
recordings to DVD.
> The second thing is easy and it is possible to combine these frames to
> form a video sequence.
The frames are a video sequence and no conversion is necessary.
> The loss of accuracy in this case is unavoidable when converting to
> digital from analogue. This loss can be reduced by using a high frame
> rate and digital quality.
The frame rate of NTSC VHS for playback is FIXED at 29.97 frames/
sec.. Two interlaced raster scans comprise a frame. For purposes of
fakery, in converting from VHS to digital frames, it would probably be
better to use each of the interlaced raster scans as a separate frame
which would effectively double the frame rate. I doubt that
conventional methods such as used in DVD recording do this. Also, I
know that extra visual information can be stored between VHS frames
because I have seen it when my TV lost vertical hold. To successfully
digitally fake VHS, information between frames and soundtrack would
have to be preserved and/or faked.
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