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Title: Region-based weighted prediction algorithm for H.264/AVC video coding
Authors: Tsang, SH
Lee, TK
Chan, YL 
Siu, WC 
Issue Date: 2013
Source: Proceedings - IEEE International Symposium on Circuits and Systems, 2013, 6571834, p. 269-272 How to cite?
Abstract: This paper proposes a novel region-based weighted prediction (WP) algorithm to encode scenes with complex brightness variations. It facilitates the use of multiple WP parameter sets in a single reference frame by utilizing the framework of multiple reference frame motion estimation (MRF-ME). With this arrangement, different macroblocks in the current frame can use different WP parameter sets even when they are predicted from the same reference frame. To support this, a region partitioning process is designed to divide the current frame into different regions where each one has some degree of uniformity in its brightness variation. Multiple sets of region-based WP parameters can then be estimated accurately. Consequently, the proposed algorithm can improve prediction in scenes with different degrees of brightness variations in different regions of the same picture. Results show that the region-based algorithm can achieve significant coding gains of scenes with complex brightness variations.
Description: 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013, Beijing, 19-23 May 2013
ISBN: 9781467357609
ISSN: 0271-4310
DOI: 10.1109/ISCAS.2013.6571834
Appears in Collections:Conference Paper

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