Feature-based intra-prediction mode decision for H.264

A fast mode decision method for intra prediction in H.264 is proposed in this work to reduce the encoder complexity. The proposed algorithm adopts a multistage sequential mode decision process that uses joint spatial and transform domain features to filter out unlikely candidate modes and. in the final stage, a simplified rate-distortion optimization method with a rate-distortion model is applied to a very limited number of candidates. It incorporates an early termination mechanism to save computations. Experimental results are given to demonstrate that the proposed scheme achieves a speed-up factor of 10-15 as compared with the current RD optimized mode decision with little quality degradation.

[1]  Gary J. Sullivan,et al.  Rate-constrained coder control and comparison of video coding standards , 2003, IEEE Trans. Circuits Syst. Video Technol..

[2]  Qing Li,et al.  Fast intra-prediction model selection for H.264 codec , 2003, SPIE ITCom.

[3]  Ajay Luthra,et al.  The H.264/AVC Advanced Video Coding standard: overview and introduction to the fidelity range extensions , 2004, SPIE Optics + Photonics.

[4]  Liang-Gee Chen,et al.  Analysis, fast algorithm, and VLSI architecture design for H.264/AVC intra frame coder , 2005, IEEE Transactions on Circuits and Systems for Video Technology.

[5]  Byeungwoo Jeon,et al.  Fast mode decision for H.264 , 2004, 2004 IEEE International Conference on Multimedia and Expo (ICME) (IEEE Cat. No.04TH8763).

[6]  Iain E. G. Richardson,et al.  H.264 and MPEG-4 Video Compression: Video Coding for Next-Generation Multimedia , 2003 .

[7]  Ajay Luthra,et al.  Overview of the H.264/AVC video coding standard , 2003, IEEE Trans. Circuits Syst. Video Technol..

[8]  F. Pan,et al.  Fast Mode Decision for Intra Prediction , 2003 .

[9]  Yongdong Zhang,et al.  Fast 4*4 intra-prediction mode selection for H.264 , 2004, ICME.