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3D-HEVC interframe coding merge mode fast decision making method

A technology of 3D-HEVC and encoding mode, which is applied in the field of rapid decision-making of inter-frame encoding and merging mode, which can solve the problem of high encoding complexity of image frames, achieve the effect of maintaining encoding quality, reducing encoding quality, and improving encoding speed

Active Publication Date: 2015-04-22
北京格镭信息科技有限公司
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to solve the problem of high coding complexity of the image frame of the 3D video non-independent viewpoint texture map, and to provide a fast judgment by the correlation between the coding modes between the viewpoints and the coding mode between the CU division levels The method of merging modes can effectively reduce the coding complexity while ensuring the coding quality

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  • 3D-HEVC interframe coding merge mode fast decision making method

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] The present invention designs a fast decision-making method for an inter-frame coding merging mode for a CU of a 3D video non-independent viewpoint texture map. In actual use, the encoder will call the method of the present invention to complete specific encoding work. image 3 It is a flowchart of the method of the present invention. Definition J skip (CU cur ) represents the rate-distortion cost obtained by encoding the current CU with merge-skip mode, Jmerge (CU cur ) represents the rate-distortion cost obtained by encoding the current CU in merge mode. Method steps of the present invention are as follows:

[0030] Step 1: Read in the video sequence according to the configuration file of the encoder, and configure the encoder through the parameter information in the configuration file.

[0031] Step 2: sequentially extract the CUs to be coded ...

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Abstract

The invention discloses a 3D-HEVC interframe coding merge mode fast decision making method. Firstly, a CU needing to be coded is extracted from a texture map of a non-independent viewpoint; secondly, the merge mode and a merge-skip mode are examined by the current CU in a 2N*2N dividing mode; thirdly, whether the frame where the current CU is located is a frame P or frame B is judged; fourthly, if the obtained result is the frame P, whether the number of the dividing layers of the current CU is three or not and whether the dividing layers meet the condition a and the condition b at the same time or not are judged; fifthly, if the obtained result shows that the frame where the current CU is located is the frame B through the judgment in the step 3, five reference blocks of the current CU in the viewpoint direction are determined through the parallax error vector (DoNBDV) obtained through adjacent blocks, and the five reference blocks include the corresponding block in the viewpoint direction and the four adjacent blocks of the corresponding block; whether the current CU meets the condition c and the condition d at the same time or not is judged. According to the 3D-HEVC interframe coding merge mode fast decision making method, under the premise that the coding quality is ensured, the total coding time is saved by 6.5 percent averagely, and the non-independent viewpoint texture map coding time is saved by 20.4 percent averagely.

Description

technical field [0001] The present invention relates to the technical field of video coding, in particular to a method for fast decision-making of an inter-frame coding combination mode in the 3D video coding standard 3D-HEVC based on the high-efficiency video coding standard HEVC. Background technique [0002] The High Efficiency Video Coding standard (HEVC) was jointly established by the International Organization for Standardization / International Electrotechnical Commission (ISO / IEC) Moving Picture Experts Group (MPEG) and the International Telecommunication Union Telecommunication Standardization Organization (ITU-T) Video Coding Experts Group (VCEG). A new generation of video coding standard formulated by the Joint Video Coding Working Group (JCT-VC), its official name in ISO / IEC is the second part of the MPEG-H standard, and its official name in ITU-T is H.265 . With the continuous improvement and development of HEVC, MPEG and VCEG established the 3D Video Coding Join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/597H04N19/109H04N19/147
Inventor 贾克斌宋雨新
Owner 北京格镭信息科技有限公司
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