Faux HD video with standard digicams (static scene) - Creative Uses of CHDK - CHDK Forum
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Faux HD video with standard digicams (static scene)

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Offline staylo

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Faux HD video with standard digicams (static scene)
« on: 14 / September / 2008, 17:39:17 »
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An idea I've had a while back (and probably has been had by a lot of other people) but have never got around to testing, that someone might want to develop or explain why it's not possible:

Compressed video generally consists of keyframes of full frame data interspersed with just the changes, right? So for a mostly static scene (eg landscape with trees gently swaying), why can't we use CHDK to periodically take a full-res photo for the keyframes and then autoswitch to movie mode for the changes, then upscale the video to match the keyframe resolution? The timing might be a little off but it could be effective for short clips for web use etc?
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Offline mrproper

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Re: Faux HD video with standard digicams (static scene)
« Reply #1 on: 15 / September / 2008, 12:06:03 »
The technology is already available, but it sucks, however I recently saw a little presentation showing extremely good results, including full HD quality, realistic panning, shading and colouring...

Can't remember the link...
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Offline staylo

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Re: Faux HD video with standard digicams (static scene)
« Reply #2 on: 16 / September / 2008, 16:16:19 »
That's interesting! If you can recall the link or even just remember what they called the technique, please let me know; I've done a little more searching but haven't turned up anything.

Thanks!
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Offline mrproper

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Re: Faux HD video with standard digicams (static scene)
« Reply #3 on: 17 / September / 2008, 13:45:51 »
Thanks to delicious.com, and lots of digging in my faves, I found it...

Using Photographs to Enhance Videos of a Static Scene

enjoy
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Offline staylo

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Re: Faux HD video with standard digicams (static scene)
« Reply #4 on: 17 / September / 2008, 17:38:45 »
Wow! Impressive stuff. A little more intensive than the kind of thing I was thinking of, but interesting to know what's possible!
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