Adaptive fast intra prediction mode decision for high efficiency video coding (HEVC)

A technology of intra-frame prediction mode and prediction mode, which is applied in the field of image processing and can solve the problem of decreasing the number of candidate modes

Inactive Publication Date: 2012-09-12
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0023] In terms of intra prediction, although several candidate mode selection algorithms have been proposed to reduce the number of modes for final RDO while satisfying BD-rate (BD-rate) But the number of candidate patterns still has room to drop

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  • Adaptive fast intra prediction mode decision for high efficiency video coding (HEVC)
  • Adaptive fast intra prediction mode decision for high efficiency video coding (HEVC)
  • Adaptive fast intra prediction mode decision for high efficiency video coding (HEVC)

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Embodiment Construction

[0046] 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.

[0047] 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 discloses an adaptive intra prediction mode decision method for high efficiency video coding (HEVC). According to the method, optimal mode selection methods of rough mode decision (RMD), most probable mode (MPM) and rate distortion optimization (RDO) in the HEVC are used, a texture-based additional mode selection process is added after RMD, the quantity of candidate modes is reduced to 2-5 for prediction blocks with the size of 4*4 and 8*8, the quantity of the candidate modes is reduced to 2-5 for prediction blocks with the size of 16*16 and 32*32, so that the quantity of the candidate modes participating in the RDO mode selection is obviously reduced.

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. Research Fund (No.2011JBM214). technical field [0003] The present invention relates to the field of image processing, and more specifically, to an adaptive fast intra-frame prediction mode decision method for intra-frame prediction mode selection in High Efficiency Video Coding (HEVC). Background technique [0004] In April 2010, the two major international video coding standard organizations VCEG and MPEG established a video compression joint team JCT-VC (Joint collaborative Team on Video Coding) to jointly develop the HEVC standard, also known as H.265. The main goal of the HEVC standard is to achieve a substantial improvement in coding efficiency compared with the previous generation standard H.264 / AVC, especially for...

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Application Information

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IPC IPC(8): H04N7/26H04N7/32H04N19/11H04N19/122H04N19/147H04N19/176H04N19/51
Inventor 张萌萌白慧慧赵川
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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