TY - GEN
T1 - A fast mode decision algorithm with macroblock-adaptive rate-distortion estimation for intra-only scalable video coding
AU - Lin, Hung Chih
AU - Peng, Wen-Hsiao
AU - Hang, Hsueh-Ming
PY - 2008/6
Y1 - 2008/6
N2 - In this paper, we propose a fast mode decision algorithm with macroblock-adaptive rate-distortion (R-D) estimation for intra-only scalable video coding (SVC). We make use of the log-linear R-D relationship of inter-dependent layers to predict the better performer among the Intra 4×4 and Intra 8×8 prediction types at the enhancement layers. Based upon the base-layer chosen prediction type, we can further reduce the number of candidate modes. In addition, to ensure the best trade-off between complexity and coding efficiency, the Intra16×16 prediction is retained and enabled only for coding high-resolution videos with smooth image contents. Comparing to the Joint Scalable Video Model v.8 (JSVM 8), an encoder time saving from 49% to 64% depending on the encoder configurations, is achieved with negligible penalty in coding efficiency.
AB - In this paper, we propose a fast mode decision algorithm with macroblock-adaptive rate-distortion (R-D) estimation for intra-only scalable video coding (SVC). We make use of the log-linear R-D relationship of inter-dependent layers to predict the better performer among the Intra 4×4 and Intra 8×8 prediction types at the enhancement layers. Based upon the base-layer chosen prediction type, we can further reduce the number of candidate modes. In addition, to ensure the best trade-off between complexity and coding efficiency, the Intra16×16 prediction is retained and enabled only for coding high-resolution videos with smooth image contents. Comparing to the Joint Scalable Video Model v.8 (JSVM 8), an encoder time saving from 49% to 64% depending on the encoder configurations, is achieved with negligible penalty in coding efficiency.
KW - Encoder optimization
KW - Fast mode decision
KW - Scalable video coding
UR - http://www.scopus.com/inward/record.url?scp=54049115547&partnerID=8YFLogxK
U2 - 10.1109/ICME.2008.4607547
DO - 10.1109/ICME.2008.4607547
M3 - Conference contribution
AN - SCOPUS:54049115547
SN - 9781424425716
T3 - 2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings
SP - 765
EP - 768
BT - 2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings
T2 - 2008 IEEE International Conference on Multimedia and Expo, ICME 2008
Y2 - 23 June 2008 through 26 June 2008
ER -