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Fast Quadtree Structure Decision for HEVC Intra Coding Using Histogram Statistics

2015 KSII Transactions on Internet and Information Systems  

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The final draft of the latest video coding standard, High Efficiency Video Coding (HEVC), was approved in January 2013. The coding efficiency of HEVC surpasses its predecessor, H.264/MPEG-4 Advanced Video Coding (AVC), by using only half of the bitrate to encode the same sequence with similar quality. However, the complexity of HEVC is sharply increased compared to H.264/AVC. In this paper, a method is proposed to decrease the complexity of intra coding in HEVC. Early pruning and an early
more » ... ing strategy are applied to the quadtree structure of coding tree units (CTU) and residual quadtree (RQT). According to our experiment, when our method is applied to sequences from Class A to Class E, the coding time is decreased by 44% at the cost of a 1.08% Bjontegaard delta rate (BD-rate) increase on average.
doi:10.3837/tiis.2015.05.015 fatcat:syjou3k7n5aizfyikbtelsbipi
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"Fast Quadtree Structure Decision for HEVC Intra Coding Using Histogram Statistics." KSII Transactions on Internet and Information Systems 9.5 (2015)