Title :
Matching-pursuit video coding .II. Operational models for rate and distortion
Author :
Neff, Ralph ; Zakhor, Avideh
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
fDate :
1/1/2002 12:00:00 AM
Abstract :
For pt. I see ibid., vol.12 , no.1, (2000).We introduce two models for predicting the rate and distortion of the matching-pursuit video codec. The first model is based on a pre-coding analysis pass using the full matching-pursuit dictionary. The second model is based on a reduced-complexity analysis pass. We evaluate these models for use within existing rate-distortion optimization techniques. Our prediction results suggest that the models have sufficient accuracy to be useful in this context, and that significant complexity reductions could be achieved compared to exact rate-distortion computation
Keywords :
computational complexity; data compression; image matching; optimisation; prediction theory; rate distortion theory; video codecs; video coding; distortion prediction; exact rate-distortion computation; matching-pursuit dictionary; matching-pursuit video coding; operational models; pre-coding analysis; rate distortion optimization; rate prediction; rate-distortion models; reduced-complexity analysis pass; video coding; Discrete cosine transforms; Encoding; Matching pursuit algorithms; Optimal control; Optimization methods; Predictive models; Rate distortion theory; Rate-distortion; Video codecs; Video coding;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on