TY - JOUR
T1 - Hierarchical B-picture mode decision in H.264/SVC
AU - ZHAO, Tiesong
AU - WANG, Hanli
AU - KWONG, Sam
AU - KUO, C.-C. Jay
AU - HALANG, Wolfgang A.
PY - 2011/10
Y1 - 2011/10
N2 - To enable robust video transmission over heterogeneous networks, the hierarchical B-picture prediction structure is employed in the state-of-the-art video coding standard H.264/SVC, aiming to produce scalable bitstreams with various frame rates. However, the exhaustive mode decision process with the hierarchical B-picture structure increases the computational complexity of H.264/SVC encoding dramatically. In this paper, a fast mode decision algorithm is proposed to speed up H.264/SVC encoding with the hierarchical B-picture structure, which is achieved by utilizing macroblock (MB) features, correlation of temporal-spatial neighboring MBs, and the discrepant characteristics of hierarchical layers. Extensive experimental results demonstrate that the proposed algorithm is able to reduce the encoding time of H.264/SVC significantly for video sequences with a wide range of resolutions, and meanwhile the video quality and compression ratio are well preserved. © 2011 Elsevier Inc. All rights reserved.
AB - To enable robust video transmission over heterogeneous networks, the hierarchical B-picture prediction structure is employed in the state-of-the-art video coding standard H.264/SVC, aiming to produce scalable bitstreams with various frame rates. However, the exhaustive mode decision process with the hierarchical B-picture structure increases the computational complexity of H.264/SVC encoding dramatically. In this paper, a fast mode decision algorithm is proposed to speed up H.264/SVC encoding with the hierarchical B-picture structure, which is achieved by utilizing macroblock (MB) features, correlation of temporal-spatial neighboring MBs, and the discrepant characteristics of hierarchical layers. Extensive experimental results demonstrate that the proposed algorithm is able to reduce the encoding time of H.264/SVC significantly for video sequences with a wide range of resolutions, and meanwhile the video quality and compression ratio are well preserved. © 2011 Elsevier Inc. All rights reserved.
KW - All-zero macroblock detection
KW - H.264
KW - Hierarchical B-picture prediction structure
KW - Mode classification
KW - Mode decision
KW - Neighboring prediction
KW - Scalable video coding
KW - Temporal scalability
UR - http://www.scopus.com/inward/record.url?scp=80051653911&partnerID=8YFLogxK
U2 - 10.1016/j.jvcir.2011.07.004
DO - 10.1016/j.jvcir.2011.07.004
M3 - Journal Article (refereed)
SN - 1047-3203
VL - 22
SP - 627
EP - 633
JO - Journal of Visual Communication and Image Representation
JF - Journal of Visual Communication and Image Representation
IS - 7
ER -