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Video coding skip mode decision-making method, device, equipment and storage medium

A skip mode and video coding technology, applied in the field of video coding, can solve unrealistic problems and achieve the effect of reducing computational complexity

Active Publication Date: 2020-04-14
BEIJING BYTEDANCE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the field of real-time video communication applications, such as video conferencing, video live broadcast, video telephony, etc., it is necessary to encode the video in real time, and it is extremely unrealistic to traverse and select the best for all encoding modes and tools

Method used

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  • Video coding skip mode decision-making method, device, equipment and storage medium
  • Video coding skip mode decision-making method, device, equipment and storage medium
  • Video coding skip mode decision-making method, device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 It shows a flowchart of a video encoding skip mode decision-making method provided by an embodiment of the present invention, and the method includes the following steps:

[0030] S101. For an inter-frame coding unit of a video, perform motion compensation using a motion vector in a skip (SKIP) mode to obtain a residual image block.

[0031] S102. The complexity of large block transformation is relatively high. In the embodiment of the present invention, the residual image block is divided into square sub-blocks of equal size.

[0032] S103. Perform discrete cosine transform DCT on the sub-block to obtain a series of transform coefficients.

[0033] S104. Perform a threshold judgment on the transform coefficients of each sub-block. If all the transform coefficients of the sub-block are smaller than the set threshold, the sub-block is judged to meet the early termination condition.

[0034] S105. If all sub-blocks satisfy the early termination condition, make ...

Embodiment 2

[0041] figure 2 It shows a structural block diagram of a video coding skip mode decision-making device provided by an embodiment of the present invention, and the device includes:

[0042] The motion compensation module is configured to perform motion compensation for the inter-frame coding unit of the video using the motion vector skipping the SKIP mode, obtain the residual image block, and send the residual image block to the sub-block division module;

[0043] A sub-block division module configured to divide the residual image block into square sub-blocks of equal size, and send the sub-blocks to the DCT transform module;

[0044]The DCT transform module is configured to perform discrete cosine transform DCT on sub-blocks to obtain a series of transform coefficients, and send the transform coefficients of each sub-block to the sub-block determination module;

[0045] The sub-block judging module is configured to perform threshold judgment on the transform coefficients of ...

Embodiment 3

[0048] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, it can realize the implementation as provided in any feasible implementation solution in Embodiment 1. Methods.

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Abstract

The invention discloses a video coding skip mode decision-making method and device, a computer device and a memory medium. The technical scheme provided by the invention comprises the steps of for aninter-frame coding unit of a video, carrying out motion compensation through utilization of a motion vector of a skip mode, thereby obtaining a residual image block; dividing the residual image blockinto square subblocks with equal sizes; for the subblocks, carrying out discrete cosine transform DCT to obtain a series of transform coefficients; carrying out threshold judgment on the transform coefficient of each subblock, and judging that the subblock satisfies an early termination condition if all transform coefficients of the subblock are smaller than a set threshold; and carrying out coding decision-making on the inter-frame coding unit in the skip mode if all subblocks satisfy the early termination condition. On the premise of not reducing the video coding efficiency, the operation complexity is greatly reduced.

Description

technical field [0001] The present invention relates to the technical field of video coding, in particular to a video coding skip mode decision-making method, device, equipment and storage medium. Background technique [0002] Network video is one of the most important applications of the Internet. High-definition video will be an inevitable trend in the field of broadcasting and television. The current development trend of mobile video is also showing a blowout trend. It can be predicted that video applications will be the biggest hot spot in the field of digital multimedia in the next few years. [0003] Due to the limitations of factors such as network bandwidth and delay, the primary difficulty faced in video applications is the video codec problem. The video codec system is the core of the video application field. It determines the quality of media services and directly affects key issues such as network bandwidth requirements, user experience quality, decoding equipme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/517H04N19/122H04N19/139H04N19/159H04N19/176H04N21/4402
Inventor 王悦
Owner BEIJING BYTEDANCE NETWORK TECH CO LTD