Journal ArticleDOI
Adaptive mode decision for H.264 encoder
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TLDR
An adaptive mode decision algorithm is presented, with rate-distortion optimisation that reduces complexity of the H.264 encoder without loss of image quality and compression ratio.Abstract:
An adaptive mode decision algorithm is presented, with rate-distortion optimisation that reduces complexity of the H.264 encoder without loss of image quality and compression ratio. The proposed algorithm uses the property of an all-zero coefficients block that is produced by quantisation and coefficient thresholding to effectively skip unnecessary modes. Experimental results show that the speed of the adaptive mode decision algorithm is two times faster than the full-mode decision algorithm of the JM72 reference encoder, without any coding loss.read more
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Efficient rate-distortion estimation for H.264/AVC coders
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References
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Proceedings ArticleDOI
Fast mode decision for H.264
Jeyun Lee,Byeungwoo Jeon +1 more
TL;DR: The simulation results show that without considerable performance degradation, the proposed methods reduce encoding time by 30% on average and save the number of computing rate-distortion costs by 72%.