A fast and low complexity approach for H.264/AVC intra mode decision
Multimedia Tools and Applications
A Low Complexity Detection of Discrete Cross Differences for Fast H.264/AVC Intra Prediction
IEEE Transactions on Multimedia
Overview of the H.264/AVC video coding standard
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
Intensity Gradient Technique for Efficient Intra-Prediction in H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
Hierarchical Intra Mode Decision for H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
Fast Decision of Block Size, Prediction Mode, and Intra Block for H.264 Intra Prediction
IEEE Transactions on Circuits and Systems for Video Technology
Efficient Algorithm for H.264/AVC Intra Frame Video Coding
IEEE Transactions on Circuits and Systems for Video Technology
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It has been well demonstrated that edge information can be utilized for intra mode decision in H.264/AVC to reduce the computational complexity. In spite of the remarkable speedup for mode decision, the existing edge detection based solution always shows relatively high coding loss due to inaccurate mode selection. In this work, a novel fast intra mode decision based on a more precise direction representation scheme is proposed, which exploits the gradation along the prediction direction as well as the differential between the original pixels and their predicted ones. Extensive experimental results show that the proposed method can averagely achieve about 0.05 dB peak signal-to-noise ratio (PSNR) gain and 1.1% bit rate (BR) decrease with negligible computational complexity increase, compared with the state-of-the-art edge detection method.