Title :
Enhanced Intra-4

4 Mode Decision for H.264/AVC Coders
Author :
Tseng, Chao-Hsuing ; Wang, Hung-Ming ; Yang, Jar-Ferr
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan
Abstract :
In this paper, we propose an enhanced rate-distortion cost function, which combines the sum of absolute integer-transformed differences (SAITD) and a rate predictor for H.264/AVC intra-4times4 mode decision. To reduce the computation of the SAITD, we further develop a fast computation algorithm, which successfully uses the property of linear transform and the fixed spatial relationship of predicted pixels in intra-modes. Simulation results show that the enhanced cost function with less computation achieves better coding performance than the cost function suggested in H.264 reference software JM 6.1d
Keywords :
image resolution; rate distortion theory; video coding; H.264-AVC coders; JM 6.1d; enhanced rate distortion cost function; intra-4 times 4 mode decision; linear transform; rate predictor; sum of absolute integer-transformed differences; Acceleration; Automatic voltage control; Computational efficiency; Cost function; Counting circuits; Encoding; Entropy; Quantization; Testing; H.264/AVC; intra-frame coding; intra-prediction; rate-distortion (R-D) cost function;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
DOI :
10.1109/TCSVT.2006.878146