ETRI-Knowledge Sharing Plaform

KOREAN
논문 검색
Type SCI
Year ~ Keyword

Detail

Journal Article Fast Mode Decision Algorithm for Scalable Video Coding Based on Luminance Coded Block Pattern
Cited 4 time in scopus Download 4 time Share share facebook twitter linkedin kakaostory
Authors
Tae-Jung Kim, Jeong-Ju Yoo, Jin-Woo Hong, Jae-Won Suh
Issue Date
2013-01
Citation
Optical Engineering, v.52, no.1, pp.1-14
ISSN
0091-3286
Publisher
SPIE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1117/1.OE.52.1.017401
Project Code
12PR1300, Development of Beyond Smart TV Technology, Hong Jin Woo
Abstract
A fast mode decision algorithm is proposed to reduce the computation complexity of adaptive inter layer prediction method, which is a motion estimation algorithm for video compression in scalable video coding (SVC) encoder systems. SVC is standard as an extension of H.264/AVC to provide multimedia services within variable transport environments and across various terminal systems. SVC supports an adaptive inter mode prediction, which includes not only the temporal prediction modes with varying block sizes but also inter layer prediction modes based on correlation between the lower layer information and the current layer. To achieve high coding efficiency, a rate distortion optimization technique is employed to select the best coding mode and reference frame for each MB. As a result, the performance gains of SVC come with increased computational complexity. To overcome this problem, we propose fast mode decision based on coded block pattern (CBP) of 16×16 mode and reference block of best CBP. The experimental results in SVC with combined scalability structure show that the proposed algorithm achieves up to an average 61.65% speed up factor in the encoding time with a negligible bit increment and a minimal image quality loss. In addition, experimental results in spatial and quality scalability show that the computational complexity has been reduced about 55.32% and 52.69%, respectively. © 2013 Society of Photo-Optical Instrumentation Engineers (SPIE).
KSP Keywords
Coding efficiency, Computational complexity, Decision algorithm, Encoding time, Fast Mode Decision, Image quality, Inter mode, Inter-layer, Motion estimation(ME), Motion estimation algorithm, Multimedia Service