Re: Current Source Status

Holger Waechtler <[email protected]> Wed, 18 Dec 2002 08:46:13 +0100
Newsgroups gmane.comp.multimedia.ogg.tarkin.devel
Message-ID <[email protected]>
Hi,

Dustin Stuart wrote:
> As I understand, the underlying model of the tarkin test code is a 3D
> wavelet algorithm. What benifets does this have over a 2D encode + Motion
> Compensation (probably not block based)?

The current code was an experiment to play with. I wrote it in a way 
that you can simply modify the wavelet transform, that you can try 
different integer wavelets and use 2d or 3d transforms.

A motion transform is simple to add, I'd suggest a wavelet-compressed 
continous motion field. There are some text files in the doc/ directory, 
they describe how it works and what needs to be done to get a useful 
video codec.

If you're looking for a robust motion flow field algorithm take a look 
on this paper: "The Robust Estimation of Multiple Motions: Parametric 
and Piecewise-Smooth Flow Fields, Michael J. Black and P. Anandan, 
published in Computer Vision and Image Understanding, Vol. 63, pp. 
75-104, 1996". You can find the document as postscript or pdf on the web.

(I don't know whether or not I will have time to continue this work next 
time, so feel free to take it over;)

Holger

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