基于质量可伸缩高性能视频编码的帧内快速算法

doi:10.11772/j.issn.1001-9081.2018010162

计算机应用 ›› 2018, Vol. 38 ›› Issue (10): 2960-2964.DOI: 10.11772/j.issn.1001-9081.2018010162

基于质量可伸缩高性能视频编码的帧内快速算法

刘妍君¹, 赵志强¹, 刘艳², 崔盈³, 汪大勇¹, 冉鹏¹, 郭毅军¹

1. 重庆邮电大学生物信息学院, 重庆 400065;
2. 日照职业技术学院电子信息工程学院, 山东日照 276800;
3. 重庆邮电大学自动化学院, 重庆 400065

收稿日期:2018-01-19 修回日期:2018-04-09 出版日期:2018-10-10 发布日期:2018-10-13
通讯作者: 赵志强
作者简介:刘妍君(1992-),女,河北邯郸人,硕士研究生,主要研究方向:视频编码;赵志强(1976-),男,河北吴桥人,教授,博士,主要研究方向:图像处理、视频编码;刘艳(1979-),女,山东日照人,讲师,硕士,主要研究方向:视频编码;崔盈(1992-),女,河南商丘人,硕士研究生,主要研究方向:视频编码;汪大勇(1980-),男,湖北孝感人,副教授,博士,主要研究方向:视频编码;冉鹏(1981-),男,重庆人,副教授,博士,主要研究方向:医学检测;郭毅军(1965-),男,浙江诸暨人,教授,博士,主要研究方向:医疗器械。
基金资助:
重庆自然科学基金资助项目（cstc2016jcyjA0543）。

Fast intra algorithm based on quality scalable high efficiency video coding

LIU Yanjun[Author]) AND 1[Journal]) AND year[Order])" target="_blank">LIU Yanjun¹, ZHAO Zhiqiang¹, LIU Yan², CUI Ying³, WANG Dayong¹, RAN Peng¹, GUO Yijun¹

1. School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
2. School of Information Science & Engineering, Rizhao Polytechnic, Rizhao Shangdong 276800, China;
3. School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received:2018-01-19 Revised:2018-04-09 Online:2018-10-10 Published:2018-10-13
Supported by:
This work is partially supported by the Natural Science Foundation of Chongqing (cstc2016jcyjA0543).

摘要/Abstract

摘要： 为了提高质量可伸缩高性能视频编码（SHVC）的编码速度，提出一种基于质量SHVC的帧内预测算法。首先，利用层间相关性来预测可能的深度，排除可能性较小的深度；其次，对可能的编码深度，采用层间预测（ILR）模式进行编码，并对得到的残差系数进行分布拟合检验，判断是否满足拉普拉斯分布从而跳过帧内模式；最后，对深度编码得到的深度残差系数判断是否满足深度提前终止判断条件，如果满足该条件则提前终止以提高编码速度。实验结果表明，所提算法能够在保证编码效率损失很小的情况下使编码速度提高79%。

关键词: 可伸缩高性能视频编码, 深度预测, 层间预测模式, 分布拟合, 提前终止

Abstract: To increase the coding speed of the quality Scalable High efficiency Video Coding (SHVC), a new intra prediction algorithm based on quality SHVC was proposed. Firstly, the potential depth was predicted by using inter-layer correlation, and the depths with low possibility were eliminated. Secondly, for the likely depth, Inter-Layer Reference (ILR) mode was used to code and examine the residual distribution by using distribution fitting to determine whether the residuals follow a Laplace distribution. If the residual followed the Laplace distribution, intra prediction was skipped. Finally, the depth residual coefficient of depth coding was tested to determine whether to satisfy the depth of early termination, if the condition was met, the code process would be terminated to improve the coding speed. The experimental results show that the proposed algorithm can improve the coding speed by 79% with negligible coding loss.

Key words: Scalable High efficiency Video Coding (SHVC), depth prediction, Inter-Layer Reference (ILR) mode, distributed fitting, early termination

中图分类号:

TP391

刘妍君, 赵志强, 刘艳, 崔盈, 汪大勇, 冉鹏, 郭毅军. 基于质量可伸缩高性能视频编码的帧内快速算法[J]. 计算机应用, 2018, 38(10): 2960-2964.

LIU Yanjun, ZHAO Zhiqiang, LIU Yan, CUI Ying, WANG Dayong, RAN Peng, GUO Yijun. Fast intra algorithm based on quality scalable high efficiency video coding[J]. Journal of Computer Applications, 2018, 38(10): 2960-2964.

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基于质量可伸缩高性能视频编码的帧内快速算法

Fast intra algorithm based on quality scalable high efficiency video coding

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