An efficient intermode decision algorithm based on motion homogeneity for H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
Fast inter-mode decision in an H.264/AVC encoder using mode and Lagrangian cost correlation
IEEE Transactions on Circuits and Systems for Video Technology
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
Fast intermode decision in H.264/AVC video coding
IEEE Transactions on Circuits and Systems for Video Technology
Analysis and complexity reduction of multiple reference frames motion estimation in H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
Fast Mode Decision Based on Mode Adaptation
IEEE Transactions on Circuits and Systems for Video Technology
Adaptive rate-distortion prediction for multiple reference selection and inter-mode decision
PCM'12 Proceedings of the 13th Pacific-Rim conference on Advances in Multimedia Information Processing
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In this paper, a new fast mode decision (FMD) algorithm is proposed for the state-of-the-art video coding standard H.264/AVC. Firstly, based on Rate-Distortion (RD) cost characteristics, all inter modes are classified into two groups, one is Skip mode (including both Skip and Direct modes) and all the other inter modes are called non-Skip modes. In order to select the best mode for coding a Macroblock (MB), minimum RD costs of these two mode groups are predicted respectively. Then for Skip mode, an early Skip mode detection scheme is proposed; for non-Skip modes, a three-stage scheme is developed to speed up the mode decision process. Experimental results demonstrate that the proposed algorithm has good robustness in coding efficiency with different Quantization parameters (Qps) and various video sequences and is able to achieve about 54% time saving on average while with negligible degradation in Peak-Signal-to-Noise-Ratio (PSNR) and acceptable increase in bit rate.