OMP-Based Transform for Inter Coding in HEVC

被引：0

作者：

Song, Rui ^{[1
]}

Lan, Cuiling ^{[2
]}

Li, Houqiang ^{[1
]}

Xu, Jizheng ^{[2
]}

Wu, Feng ^{[1
]}

机构：

[1] Univ Sci & Technol China, CAS Key Lab Technol Geospatial Informat Proc & Ap, Hefei, Peoples R China

[2] Microsoft Res Asia, Beijing, Peoples R China

来源：

2016 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2016年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Discrete Cosine Transform (DCT) has been the commonly used transform for a few decades in image/video coding. However, DCT does not work well on the blocks having anisotropic correlations. In this paper, based on the adaptive dictionary, we propose a new online transform scheme using Orthogonal Matching Pursuit (OMP) for High Efficiency Video Coding (HEVC). For a coding block, we construct its dictionary by exploiting non-local correlations from the reconstructed regions. The OMP algorithm is implemented to obtain the sparse transform coefficients. Experimental results show that the BD-rate savings of the proposed scheme for the sequences with strong edges can be up to 19.9%.

引用

页码：798 / 801

页数：4

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