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HEVC screen content coding scheme based on linear intra-frame copying

A technology of video coding and coding unit, which is applied in the field of HEVC screen content coding, and can solve problems such as high overhead

Active Publication Date: 2014-12-17
常州横塘科技产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the DV of each line of linear IntraBC needs to be encoded, which introduces a lot of overhead

Method used

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  • HEVC screen content coding scheme based on linear intra-frame copying
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  • HEVC screen content coding scheme based on linear intra-frame copying

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Embodiment Construction

[0069] Various aspects are now described with reference to the figures. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that such aspects can be practiced without these specific details.

[0070] As used in this application, the terms "component", "module", "system" and the like are intended to refer to a computer-related entity such as, but not limited to, hardware, firmware, a combination of hardware and software, software, Or software in execution. For example, a component may be, but is not limited to being limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both an application running on a computing device and the computing device can be components. One or more components can reside within a process and / or thread of execution ...

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Abstract

The invention provides two coding schemes. One scheme is that horizontal partition and vertical partition are respectively performed on CU, horizontal lines and vertical lines are respectively searched to find optimal substitute vectors; meanwhile optimal prediction lines are looked up in a prediction region on the left side of the horizontal lines and a prediction region above the vertical lines in a similar mode to obtain the prediction substitute vectors; if the optimal substitute vectors are identical to the prediction substitute vectors, mark setting is performed without substitute vector transferring, and if the optimal substitute vectors are different from the prediction substitute vectors, optimal substitute vectors are transferred. The other scheme is that the horizontal lines and the vertical lines are overturned, then the optimal substitute vectors are searched, and searching on the prediction substitute vectors is not performed at the moment. The two coding schemes can be adopted simultaneously or separately.

Description

[0001] joint research [0002] This application is jointly researched by North China University of Technology and Information Institute of Beijing Jiaotong University, and supported by the following funds: National Natural Science Foundation of China (No.60903066, No.60972085), Beijing Natural Science Foundation of China (No.4102049), New Teacher of the Ministry of Education Fund (No.20090009120006), and Beijing Municipal Higher Education Intensification Plan for Talents (PHR201008187). technical field [0003] The present invention relates to the field of image processing, and more particularly, to HEVC screen content coding based on linear intra block copy for processing screen content in High Efficiency Video Coding (HEVC). Background technique [0004] The High Efficient Video Coding (HEVC) standard is launched by the Joint Collaborative on Video Coding (JCT-VC), and is the latest video coding standard [1]. Compared with existing video coding standards, HEVC can greatly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/513H04N19/54H04N19/105H04N19/192
Inventor 张萌萌
Owner 常州横塘科技产业有限公司