We propose a novel video coding scheme to improve the performance of established block-based motion compensation codecs such as MPEG, H261, and H263. The proposed method is a hybrid scheme which introduces model-based global motion compensation as a pre-processing step to the basic block-based motion compensation technique. Performance evaluation tests show that the new method is capable of achieving higher compression rates with the addition of a very small overhead due to global motion estimation. In this paper we describe a codec based on the hybrid motion compensation technique in the context of H263, and present experimental results, comparing the performance of different codecs using rate-distortion curves for several test sequences.
BibTeX
@inproceedings{Morimoto:ICIP1997,
author = {Carlos H. Morimoto and Philippe Burlina and Rama Chellappa},
booktitle = {Proceedings of the International Conference on Image Processing},
title = {Video coding using hybrid motion compensation},
year = {1997},
volume = {1},
pages = {89-92 vol.1},
keywords = {data compression;image sequences;motion compensation;motion estimation;rate distortion theory;telecommunication standards;video codecs;video coding;H261;H263;MPEG;block-based motion compensation codecs;block-based motion compensation technique;codec;compression rates;global motion estimation;hybrid motion compensation;model-based global motion compensation;pre-processing step;rate-distortion curves;test sequences;video coding scheme;Automation;Code standards;Codecs;Image coding;Image segmentation;Layout;Motion compensation;Motion estimation;Testing;Video coding},
doi = {10.1109/ICIP.1997.647391},
month = {October}
}