Fast H.264 selective intra mode decision for inter-frame coding

Authors:
Yi-Hsin Huang;Tao-Sheng Ou;Homer H. Chen
Affiliations:
Graduate Institute of Communication Engineering, National Taiwan University;Graduate Institute of Communication Engineering, National Taiwan University;Graduate Institute of Communication Engineering, National Taiwan University
Venue:
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Year:
2009

Citing 6
Cited 0

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A Fast Mode Decision Algorithm and Its VLSI Design for H.264/AVC Intra-Prediction

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Fast Selective Intra-Mode Search Algorithm Based on Adaptive Thresholding Scheme for H.264/AVC Encoding

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Abstract

Despite its remarkable coding efficiency, the computational complexity of the spatial-domain intra prediction scheme of H.264 remains a challenging issue especially for applications of the High Profile, as it incorporates the additional intra 8×8 prediction mode. To address this issue, we propose in this paper a fast selective intra mode decision algorithm that exploits a newly discovered property of inter-frame coding that the difference in rate-distortion cost between the best inter mode and the intra 16×16 mode is highly related to the type of the best coding mode. The proposed algorithm has high prediction accuracy, low computational overhead, and negligible effect on PSNR and bit-rate. Performance comparison is provided to show the superiority of the algorithm.