基于HEVC的自适应插值滤波算法

吉林大学学报(理学版)

基于HEVC的自适应插值滤波算法

王刚^1.2, 陈贺新^1, 陈绵书^1

1. 吉林大学通信工程学院, 长春 130012； 2. 白城师范学院机械工程学院, 吉林白城 137000

收稿日期:2016-11-10 出版日期:2018-03-26 发布日期:2018-03-27
通讯作者: 陈绵书 E-mail:chenms@jlu.edu.cn

Adaptive Interpolation Filter Algorithm Based on HEVC

WANG Gang^1,2 , CHEN Hexin¹ , CHEN Mianshu¹

1. College of Communication Engineering, Jilin University, Changchun 130012, China;2. School of Mechanical Engineering, Baicheng Normal University, Baicheng 137000, Jilin Province, China

Received:2016-11-10 Online:2018-03-26 Published:2018-03-27
Contact: CHEN Mianshu E-mail:chenms@jlu.edu.cn

摘要/Abstract

摘要： 为进一步提高自适应分像素插值算法的视频图像质量, 降低计算复杂度, 提出一种基于HEVC(high efficiency video coding)的自适应插值滤波算法. 该算法首先在新一代视频编码标准H.265/HEVC框架下进行编码, 以提高视频编码效率；其次通过滤波器系数对称优化, 降低码流所需滤波器系数和解码计算的复杂度. 复杂度分析结果表明, 与其他算法相比, 该算法乘法复杂度最高降低229%, 加法复杂度最高降低245%. 仿真结果表明, 与其他算法相比, 该算法对不同分辨率视频序列均具有较好的编码性能及鲁棒性.

关键词: 通信技术, 自适应滤波器, 多对称性, 峰值信噪比, 码率

Abstract: In order to further improve video quality of adaptive sub\|pixel interpolation algorithm and reduce computational complexity, we proposed an adaptive interpolation filter algorithm based on HEVC (high efficiency video coding). Firstly, the algorithm was coded under the video coding framework of new coding standard H.265/HEVC to improve efficiency of video coding. Secondly, the filter coefficients demanded by code stream and the complexity of decoding computation were reduced by the symmetric optimization of filter coefficients. The results of complexity analysis show that compared with other algorithms, the multiplicative complexity of this algorithm is reduced by 229%, and the addition complexity is reduced by 245%. Simulation results show that, compared with other algorithms, this algorithm has good coding performance and robustness for different resolution video sequences.

Key words: adaptive filter, multisymmetry, communication technology, bit rate, peak signal to noise ratio

中图分类号:

TP39

王刚, 陈贺新, 陈绵书. 基于HEVC的自适应插值滤波算法[J]. 吉林大学学报(理学版), 2018, 56(2): 320-328.

WANG Gang,CHEN Hexin, CHEN Mianshu. Adaptive Interpolation Filter Algorithm Based on HEVC[J]. Journal of Jilin University Science Edition, 2018, 56(2): 320-328.

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