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 --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to '[email protected]' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.