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Fast Coding Mode Decision for MPEG-4 AVC|H.264 Scalable Extension  

Lim, Sun-Hee (Sungkyunkwan University, School of Information and Communication Engineering)
Yang, Jung-Youp (Sungkyunkwan University, School of Information and Communication Engineering)
Jeon, Byeung-Woo (Sungkyunkwan University, School of Information and Communication Engineering)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.45, no.6, 2008 , pp. 95-107 More about this Journal
Abstract
In this paper, we propose a fast mode decision method for temporal and spatial scalability to reduce computational complexity of mode decision that used to be computationally one of the most intensive processes of the MPEG-4 AVC|H.264 SE(Scalable Extension) encoding. For temporal scalability, we propose an early skip method and MHM(mode history map) method. The early skip method confines macroblock modes of backward and forward frames within selected a few candidates. The MHM method utilizes stored information of frames inside a GOP of lower levels for the decision of MHM at higher level. For the spatial scalability, we propose the method that uses a candidate mode according to the MHM method and adds the BL_mode as candidates. The proposed scheme reduces the number of candidate modes to reduce computational complexity in mode decision. The proposed scheme reduces total encoding time by about 52% for temporal scalability and 47% for spatial scalability without significant loss of RD performance.
Keywords
Fast Mode Decision; Complexity Reduction; Scalable Coding; Early Skip; Mode History Map;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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