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Method and device for encoding video data, equipment and medium

A video data and coding technology, applied in the field of cloud computing, can solve the problems of increasing the calculation amount and time occupied by intra-frame coding

Active Publication Date: 2021-03-26
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of intra-frame coding, there are a lot of prediction modes for the image blocks in each frame of image, and too many prediction modes greatly increase the calculation amount of intra-frame coding
[0003] Especially, among many prediction modes, the process of selecting the optimal mode using the rate-distortion optimization strategy (RDO) takes up a lot of time in the whole intra prediction process

Method used

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  • Method and device for encoding video data, equipment and medium
  • Method and device for encoding video data, equipment and medium
  • Method and device for encoding video data, equipment and medium

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Embodiment Construction

[0017] In the present disclosure, unless otherwise stated, using the terms "first", "second", etc. to describe various elements is not intended to limit the positional relationship, temporal relationship or importance relationship of these elements, and such terms are only used for Distinguishes one element from another. In some examples, the first element and the second element may refer to the same instance of the element, and in some cases, they may also refer to different instances based on contextual description.

[0018] The terminology used in describing the various described examples in this disclosure is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, there may be one or more elements. In addition, the term "and / or" used in this disclosure covers any one and all possible combinations of the listed items.

[0019] In order ...

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Abstract

The invention relates to a method and device for encoding video data, equipment and a medium. The method can be applied to the field of cloud platforms. The method comprises the following steps: for ato-be-coded current image block of any frame of image in video data, calculating a first cost of each prediction mode in a predefined set containing a plurality of intra-frame prediction modes; according to the first cost of each prediction mode, selecting a first number of prediction modes with the first cost from low to high in a predefined set to enter a candidate prediction mode set; determining a subset of the candidate prediction mode set based on at least one of a first prediction mode with the lowest first cost and a second prediction mode with the second lowest first cost in the first number of prediction modes in the candidate prediction mode set; calculating a second cost of each prediction mode in the subset; and selecting one prediction mode in the subset based on the secondcost of each prediction mode in the subset, and encoding the current image block.

Description

technical field [0001] The present disclosure relates to the technical field of cloud computing and can be used in cloud platforms. In particular, it relates to a method and device, device and medium for encoding video data. Background technique [0002] Currently, in the process of video encoding, it is necessary to encode each frame of image in the video. In the process of intra-frame coding, there are many prediction modes for image blocks in each frame of image, and too many prediction modes greatly increase the calculation amount of intra-frame coding. [0003] In particular, among many prediction modes, the process of selecting the optimal mode using rate-distortion optimization (RDO) takes a lot of time in the whole intra prediction process. [0004] In order to reduce unnecessary rate-distortion optimization (RDO) calculations, the present disclosure will optimize the encoding process. [0005] The approaches described in this section are not necessarily approache...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/11H04N19/147H04N19/176
CPCH04N19/11H04N19/147H04N19/176
Inventor 张娇娇丁文鹏
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD