George's Video Page
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Lately I've been playing with Internet video. As can be seen from
the results, I've got a lot of learning to do. However, I'm posting a
few postage stamp sized videos here. I suppose that the quality of the
videos will improve as I figure out how to do this stuff right.
I purchased a very inexpensive XLR8 USB video
digitizer for my Macintosh so that I could digitize the analog
video that I had recorded from an X-10 Remote Video
Camera using the method shown at my X-10 Video Tips page.
The camera radio link is not completely solid which results in
dropouts in the video. This is somewhat annoying while watching the
analog video, but the digitizer gets all confused by the dropouts and
makes them much worse as it looses video lock and has to take some time
to recover. I suppose that over time, I'll figure out how to make the
digitizer more tolerant of loss of a valid video signal or even better,
figure out how to get a cleaner video in the first place.
Video can get really large and must be heavily compressed to be
suitable for internet use. Straight digitized video at 320 x 240 pixel
resolution runs about 150 Mbyte/minute. After being compressed with a
Sorenson filter in a postage stamp sized window at 15 fps and having
the audio digitized at 8 kHz monaural (the audio track isn't very
interesting anyway) it gets down to about 1.5 MByte/minute.
The table below indexes the video that I've done so far. As I get
better at it, I'll replace the worst of it with better sequences.
The movie files are stored in Apple's QuickTime video format. If
your computer can't handle QuickTime now, you can get it for most
versions of Windows or the MacOS at:
This page has been accessed times since 2 Feb 2001.
© 2001-2002 George Schreyer
Created Feb 2, 2001
Last Updated June 16, 2002