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Journal of Shanghai University >

2013 , Vol. 19 >Issue 3: 240 - 244

DOI: https://doi.org/10.3969/j.issn.1007-2861.2013.03.005

Audio Video Coding Standard

A New Transform Structure for Geometry Motion Partitioning in Video Coding

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  • 1. Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China; 2. R&D Department of Hisilicon Semiconductor and Component Business Department, Huawei Technologies, Shenzhen 518129, Guangdong, China

Received date: 2013-05-19

  Online published: 2013-06-30

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Abstract

This paper proposes a transform structure with arbitrary shape blocks for geometry block partitioning. A square coding block is split into two arbitrary shaped prediction blocks by geometry partitioning, which is more flexible than the partitioning method used in current video coding standards. In the current design, using a square transform block for combined square residual block is not reasonable and will affect transform efficiency. To further improve the transform structure, we propose that the two arbitrary shaped residual blocks are transformed separately with arbitrary shaped transform blocks. A turnover method is used to retain the correlation of residuals. Experimental results show that a bit rate saving of 1.16%~3.05% can be achieved.

Key words： geometry block partitioning; transform block; transform with arbitrary shaped block

Cite this article

YUAN Yuan1, ZHENG Xiao-zhen2, HE Yun1 . A New Transform Structure for Geometry Motion Partitioning in Video Coding[J]. Journal of Shanghai University, 2013 , 19(3) : 240 -244 . DOI: 10.3969/j.issn.1007-2861.2013.03.005

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