Inter and intra pre-analysis algorithm for HEVC

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• 作者：Gabriel Cebrián-Márquez ; José Luis Martínez ; Pedro Cuenca
• 关键词：HEVC ; Pre ; analysis ; Intra prediction ; Inter prediction ; Reference frame selection ; Motion estimation
• 刊名：The Journal of Supercomputing
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：73
• 期：1
• 页码：414-432
• 全文大小：
• 刊物类别：Computer Science
• 刊物主题：Programming Languages, Compilers, Interpreters; Processor Architectures; Computer Science, general;
• 出版者：Springer US
• ISSN：1573-0484
• 卷排序：73

文摘

The unceasing demands for high quality multimedia contents and the advent of new resolutions such as ultra high-definition motivated the development of the high efficiency video coding (HEVC) standard, which outperforms prior standards by up to 50 % in terms of coding efficiency. While this improvement meets the aforementioned demands, it also involves a considerable increase in computational cost of the encoder. For this reason, fast and efficient coding algorithms are now a requirement for HEVC-compliant real-time encoders. In this regard, this paper proposes a pre-analysis algorithm designed to provide coding information to both the intra and the inter modules of the encoding stage. As a result, experiments show that the algorithm is able to reduce the encoding time between 12.77 and 18.32 % for random access configurations, at the expense of negligible losses in terms of coding efficiency.