High-efficiency video coding inter-frame mode judging method based on temporal relativity

A technology of video coding and inter-frame mode, which is applied in the field of image communication, can solve the problems of increased computational complexity of video coding, large redundancy, and fast video coding methods are not suitable for HEVC, etc., to increase hardware implementation costs and reduce computing The effect of complexity, video coding compression ratio and video quality loss is small

Active Publication Date: 2013-03-20
SICHUAN UNIV
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Problems solved by technology

All of the above methods have reduced the computational complexity of HEVC video coding to a certain extent, but the current inter-frame prediction mode of HEVC video coding still has a large redundancy in the time domain.
[0005] Compared with H.264/AVC, HEVC has greatly improved the video compression ratio, but the computational complexity of video

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  • High-efficiency video coding inter-frame mode judging method based on temporal relativity
  • High-efficiency video coding inter-frame mode judging method based on temporal relativity
  • High-efficiency video coding inter-frame mode judging method based on temporal relativity

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[0031] The present invention will be further described in detail below in conjunction with the examples. It must be pointed out that the following examples are only used to further illustrate the present invention and cannot be interpreted as limiting the protection scope of the present invention. Content, making some non-essential improvements and adjustments to the present invention for specific implementation shall still belong to the protection scope of the present invention.

[0032] 1. Open the programs of the two algorithms at the same time and set the same configuration file. The reference software selects HM7.0, and the quantization step (QP) value is 27 and 32 respectively. The present invention will be compared with the method of the reference software algorithm HM7.0 of the HEVC video coding standard. And its three kinds of video coding performance: bit rate, peak signal-to-noise ratio (PSNR) and video coding time (PSNR reflects the objective video quality of the v...

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Abstract

The invention discloses a high-efficiency video coding (HEVC) inter-frame mode judging method based on temporal relativity, which comprises the steps of forecast method configuration and forecast mode selection. The forecast mode selection adopts the temporal relativity between two adjacent frames; the similarity of PU (Physical Unit) modes of a large size CU (Control Unit) of a corresponding piece in the previous frame and a small size CU in the current piece is analyzed according to the relativity; and finally, a PU mode selection method of the current CUs in various dimension is designed for the corresponding pieces in various dimensions according to the similarity. Compared with the HEVC standard in the prior art, with the adoption of the HEVC inter-frame mode judging method, the complexity of codding computation is reduced to a greater extent on the premise that the bit rate and video quality are almost unchanged.

Description

technical field [0001] The invention relates to the technical problem of video coding inter-frame mode in the field of image communication, in particular to a high-performance video coding inter-frame mode judgment method. Background technique [0002] The current international video coding standard is Advanced Video Coding (H.264 / AVC). Compared with previous video coding standards, this video coding standard has greatly improved video coding performance. With the wide application of high-definition video technology, the maximum block size of 16×16 in H.264 / AVC is no longer suitable for encoding high-definition video. To this end, the International Organization for Standardization-International Electrotechnical Commission / Moving Picture Experts Group (ISO-IEC / MPEG) and the International Telecommunication Union Telecommunication Standardization Organization / Video Coding Experts Group (ITU-T / VCEG) have been established. Video Coding Joint Development Team (JCT-VC), and is dev...

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Application Information

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IPC IPC(8): H04N7/26H04N7/32H04N19/159H04N19/31H04N19/96
Inventor 何小海钟国韵李元吴晓红王正勇陶青川
Owner SICHUAN UNIV
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