A fast intra prediction mode decision using DCT and quantization for H.264/AVC

Authors:
Dae-Yeon Kim;Yung-Lyul Lee
Affiliations:
Digital Media System Lab., Department of Computer Engineering, Sejong University, 98 Kunja-Dong, Kwangjin-Gu, Seoul, Republic of Korea;Digital Media System Lab., Department of Computer Engineering, Sejong University, 98 Kunja-Dong, Kwangjin-Gu, Seoul, Republic of Korea
Venue:
Image Communication
Year:
2011

Citing 4
Cited 1

Introduction to the special issue on the H.264/AVC video coding standard

IEEE Transactions on Circuits and Systems for Video Technology
Low-complexity transform and quantization in H.264/AVC

IEEE Transactions on Circuits and Systems for Video Technology
Fast mode decision algorithm for intraprediction in H.264/AVC video coding

IEEE Transactions on Circuits and Systems for Video Technology
A Fast Mode Decision Algorithm and Its VLSI Design for H.264/AVC Intra-Prediction

IEEE Transactions on Circuits and Systems for Video Technology

A fine-grain distortion and complexity aware parameter tuning model for the H.264/AVC encoder

Image Communication

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Abstract

Intra coding is used for reducing the spatial redundancy in video coding. H.264/AVC supports block-based predictions for Intra coding. These Intra predictions also have several directional prediction modes, which significantly improve the Intra coding efficiency, but increase the encoding complexity. In this paper, two fast Intra prediction mode decision algorithms are proposed for H.264/AVC Intra coding. The proposed algorithms select one representative prediction mode or a few representative prediction modes among all intra predictions using the existing DCT and quantization schemes of H.264/AVC, and only the representative modes are used for the Rate Distortion Optimization (RDO) process. The experimental results show that the proposed algorithm 1 and 2 achieve encoding time savings of 53% and 63%, respectively, with negligible loss of Peak Signal-to-Noise Ratio (PSNR).