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Video coding method and method and device for determining to adopt inter-frame coding mode

A video encoding and encoding technology, applied in digital video signal modification, image communication, electrical components, etc., can solve the problem of high memory access bandwidth in hardware design, and achieve the effect of reducing memory access bandwidth

Active Publication Date: 2022-03-25
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present disclosure provides a video coding method and a method and device for determining the inter-frame coding mode, which are used to solve the problem of high memory access bandwidth in hardware design due to the size of sub-blocks in bidirectional predictive coding in the prior art

Method used

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  • Video coding method and method and device for determining to adopt inter-frame coding mode
  • Video coding method and method and device for determining to adopt inter-frame coding mode

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Embodiment 1

[0108]Based on the problem of high memory access bandwidth in hardware design caused by inter-frame predictive coding in the prior art, an embodiment of the present disclosure provides a video coding method, such as figure 1 shown, including:

[0109] S101. Acquire a video image frame, and determine a coding unit CU in the video image frame;

[0110] The above-mentioned video image frames include a plurality of video image frames that need to be compressed, and the plurality of video image frames have a corresponding time sequence;

[0111] In different video coding methods, the methods of determining the CU are different, and the specific method can be determined using an existing method, which will not be described in detail here.

[0112] S102. Divide the CU that uses inter-frame predictive coding into sub-blocks based on constraints, where the constraints include: for unidirectional predictive coding and / or bidirectional predictive coding, the size of the smallest sub-bl...

example 1

[0162] Example 1, for inter-frame prediction coding in affine mode, the minimum sub-block size for CU division in bidirectional prediction is 8×8 (Sizebi);

example 2

[0163] Example 2, for inter-frame predictive coding of ATMVP / STMVP, the size of sub-blocks divided into CUs in bidirectional prediction is 8×8 (Sizebi);

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Abstract

The present disclosure provides a video coding method and a method and device for determining an inter-frame coding method. The method includes: acquiring a video image frame, and determining a coding unit CU in the video image frame; The CU is divided into sub-blocks, wherein the constraints include: for unidirectional predictive coding and / or bidirectional predictive coding, the size of the smallest sub-block is greater than the size of the smallest sub-block agreed in the protocol; Encoding method to encode. The present disclosure can reduce the memory access bandwidth by constraining the size of the coding sub-block.

Description

[0001] Cross References to Related Applications [0002] This application is required to be submitted to the US Patent Office on August 14, 2018, the application number is 62 / 718,845, and the application name For "CONSTRAINTS ON THE BLOCK SIZE FOR MOTION The beauty of COMPENSATION IN VIDEO CODING” The priority of the patent application of the United States, the entire content of which is incorporated in this application by reference. technical field [0003] The present disclosure relates to the technical field of video coding and compression, and in particular to a video coding method and a method and device for determining an inter-frame coding mode. Background technique [0004] Video data is currently compressed using various video coding techniques performed according to one or more video coding standards. Video coding standards include Versatile Video Coding (VVC), Joint Exploration Test Model (JEM), High Efficient Video Coding (HEVC), Advanced Video Coding (A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/103H04N19/119H04N19/159H04N19/176H04N19/52H04N19/96
CPCH04N19/103H04N19/119H04N19/159H04N19/176H04N19/52H04N19/96
Inventor 陈漪纹王祥林
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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