文章基本信息

标题：Early Coding Unit-Splitting Termination Algorithm for High Efficiency Video Coding (HEVC)
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作者：Goswami, Kalyan ; Kim, Byung-Gyu ; Jun, Dongsan 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2014
卷号：36
期号：3
页码：407-417
DOI：10.4218/etrij.14.0113.0458
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：A new-generation video coding standard, named High Efficiency Video Coding (HEVC), has recently been developed by JCT-VC. This new standard provides a significant improvement in picture quality, especially for high-resolution videos. However, one the most important challenges in HEVC is time complexity. A quadtree-based structure is created for the encoding and decoding processes and the rate-distortion (RD) cost is calculated for all possible dimensions of coding units in the quadtree. This provides a high encoding quality, but also causes computational complexity. We focus on a reduction scheme of the computational complexity and propose a new approach that can terminate the quadtree-based structure early, based on the RD costs of the parent and current levels. Our proposed algorithm is compared with HEVC Test Model version 10.0 software and a previously proposed algorithm. Experimental results show that our algorithm provides a significant time reduction for encoding, with only a small loss in video quality.
关键词：HEVC;coding tree block;coding unit;CU splitting