Coding unit partition method and multi-view video coding method using coding unit partition method

A coding unit and maximum coding unit technology, applied in the field of video coding, can solve problems such as large computational complexity, and achieve the effect of avoiding computation and improving efficiency

Active Publication Date: 2013-12-04
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

The current HTM platform adopts the exhaustive iterative method, which converts a maximum coding unit from a 64x64 CU to an 8x8 CU through a three-layer quadtree structure. The division process is computationally complex.

Method used

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  • Coding unit partition method and multi-view video coding method using coding unit partition method

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Embodiment Construction

[0033] By studying the correlation of texture maps between adjacent views, the texture complexity of the largest coding unit in an independent view can be calculated to determine the division method of the sub-block corresponding to the current largest coding unit to be encoded. Because, when the division information value of a coding unit in a certain area is larger, it means that the texture information here is richer, and the texture complexity is greater, and it needs to be divided into smaller coding units; similarly, when the coding unit of this area The smaller the division information value of , the less texture information there is, the flatter the content is, and the smaller the texture complexity is, it can be divided into larger coding units to meet the requirements. Thus, the mapping relationship between the partition mode of the largest coding unit of the current coding viewpoint and the partitioning information of the matching unit in the corresponding area in th...

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Abstract

The invention provides a coding unit partition method. The method includes the following steps: A1, inputting more than two viewpoint video texture images and depth image sequences, A2, recording partition information of all maximum CUs of independent viewpoints, A3, establishing mapping between the partition information of the maximum CUs and weights, A4, acquiring matching units of the maximum CUs in the independent viewpoints, A5, determining division of sub-blocks corresponding to the maximum CUs to be coded in texture images of current non-independent viewpoints to be coded, and A6, outputting division of all the maximum CUs of current coded viewpoints. According to the CU partition method, statistical information of division of the CUs of the coded synchronous independent viewpoints is used for achieving division of the CUs of the non-independent viewpoints to be coded, exhaustion and iteration partition method of the CUs of the non-independent viewpoints are omitted in calculation, therefore, the whole CU partition process is accelerated, and efficiency is improved.

Description

technical field [0001] The present invention relates to video coding technology, in particular to a coding unit fast division algorithm based on inter-view texture correlation of multi-viewpoint video, and a multi-viewpoint video coding method using the method. Background technique [0002] With the introduction of a new generation of video standard HEVC (High Efficiency Video Coding), HEVC-based multi-view 3D video is also produced, as a joint video project of MPEG (Moving Pictures Experts Group) and VCEG (Video Coding Experts Group) HEVC To promote, 3D-HEVC will be developed for 3D video coding. [0003] In 3D-HEVC, 3D video data is encoded in the format of "multi-view video + depth map". Different from the H.264 / MPEG-4 standard, in the new HEVC standard, the coding layer uses a coding unit different from the previous macroblock (MB), but a new coding unit (CU, Coding Units) and a coding tree Structure (CTU, Coding Tree Units). Compared with the MB division in the H.264...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N13/00
Inventor 金欣迟广晟戴琼海
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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