{"title":"Fast algorithm based on edge density and gradient angle for intra encoding in HEVC","authors":"Huiming Huang, Fang Wei","doi":"10.1109/ICNIDC.2016.7974594","DOIUrl":null,"url":null,"abstract":"The next generation video coding standard, High Efficiency Video Coding (HEVC) has achieved great gains over the previous standards. However, the high efficiency brings huge computation complexity. In order to solve the problem of balance between complexity and performance, this paper presents a fast algorithm for the intra part in HEVC. The algorithm includes a pre-partitioning for CUs based on the edge density of the textures to simplify the partitioning and a new rough modes decision based on the most probable gradient angles to reduce candidate modes. Compared to HEVC reference software HM8.0, the proposed algorithm can save about 33% encoding time for all intra configurations with a slight loss of PSNR.","PeriodicalId":439987,"journal":{"name":"2016 IEEE International Conference on Network Infrastructure and Digital Content (IC-NIDC)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE International Conference on Network Infrastructure and Digital Content (IC-NIDC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICNIDC.2016.7974594","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
The next generation video coding standard, High Efficiency Video Coding (HEVC) has achieved great gains over the previous standards. However, the high efficiency brings huge computation complexity. In order to solve the problem of balance between complexity and performance, this paper presents a fast algorithm for the intra part in HEVC. The algorithm includes a pre-partitioning for CUs based on the edge density of the textures to simplify the partitioning and a new rough modes decision based on the most probable gradient angles to reduce candidate modes. Compared to HEVC reference software HM8.0, the proposed algorithm can save about 33% encoding time for all intra configurations with a slight loss of PSNR.
新一代视频编码标准——高效视频编码(High Efficiency video coding, HEVC)比以前的标准有了很大的进步。然而，高效率带来了巨大的计算复杂度。为了解决复杂度和性能之间的平衡问题，本文提出了一种快速的HEVC内分割算法。该算法包括基于纹理边缘密度对cu进行预划分以简化划分，以及基于最可能梯度角的粗糙模式决策以减少候选模式。与HEVC参考软件HM8.0相比，该算法在PSNR略有损失的情况下，可将所有帧内配置的编码时间节省约33%。
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