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Down-sampling-based intra-frame division method, related device equipment and medium

A technology of sampling rate and computing equipment, applied in the field of video coding, which can solve the problems of huge amount of calculation, high complexity, and affecting coding speed of intra-frame division

Pending Publication Date: 2022-07-01
CAMBRICON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the huge amount of calculation and high complexity of the traditional intra-frame division, the t

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  • Down-sampling-based intra-frame division method, related device equipment and medium
  • Down-sampling-based intra-frame division method, related device equipment and medium
  • Down-sampling-based intra-frame division method, related device equipment and medium

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Embodiment Construction

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0040] First, some terms and related technologies involved in this application are explained so as to facilitate the understanding of those skilled in the art.

[0041] High Efficiency Video Coding (H.265 / High Efficiency Video Coding, H.265 / HEVC) is a new video compression standard used to replace Advanced Video Coding (H.264 / Advanced Video Coding, H.264 / AVC) ) this coding standard. After the ITU-T Video Coding Experts Group (VCEG) began research on new technologies t...

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Abstract

The invention provides an intra-frame division method based on down-sampling, related device equipment and a medium. The method comprises the following steps: performing down-sampling on a first image block to obtain a second image block; the second image block is an image block obtained by down-sampling the first image block at a first sampling rate; determining an optimal prediction mode corresponding to the second image block; the optimal prediction mode is used for predicting the first image block based on a reference pixel; and determining whether to divide the first image block based on the coding cost of the first image block in the optimal prediction mode. According to the method, the number of pixels needing to be calculated is greatly reduced, the calculation amount is remarkably reduced, and meanwhile, the complexity of intra-frame division is also reduced.

Description

technical field [0001] The present application relates to the field of video coding, and in particular, to a downsampling-based intra-frame division method, a downsampling-based intra-frame division apparatus, a computing device, and a computer-readable storage medium. Background technique [0002] As we all know, the amount of information obtained by humans through vision accounts for about 70% of the total amount of information, and video is one of the important ways for humans to obtain information through vision. A video is a continuous sequence of images, consisting of consecutive frames, and a frame is an image. Since the similarity between consecutive frames is extremely high, in order to facilitate storage and transmission, the original video needs to be encoded and compressed to remove the redundancy in the spatial and temporal dimensions. [0003] At present, people have higher and higher requirements for video definition, which also puts forward higher requiremen...

Claims

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Application Information

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IPC IPC(8): H04N19/103H04N19/593H04N19/182H04N19/96H04N19/119
CPCH04N19/103H04N19/593H04N19/182H04N19/96H04N19/119
Inventor 不公告发明人
Owner CAMBRICON TECH CO LTD