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Video coding and decoding method and device

A technology of video encoding and encoding bit rate, which is applied in the decoding method and device, and the field of video encoding, which can solve the problems that live video cannot be realized, and achieve the effect of improving image quality

Pending Publication Date: 2021-09-28
杭州网易智企科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this encoding method in the related art needs to optimize the entire video, it can only optimize the video in the non-live scene, but it cannot be realized for the live video.

Method used

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  • Video coding and decoding method and device
  • Video coding and decoding method and device
  • Video coding and decoding method and device

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Embodiment Construction

[0087] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0088] At present, with the development of mobile terminals and network technologies, video coding technologies can be used in many different scenarios, and in different scenarios, factors affecting image quality are also different. For different application scenarios, in order to achieve the effect of optimal image quality and minimum cost, it is necessary to determine the parameters of video encoding in different application scenarios. For...

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Abstract

The invention relates to the technical field of video processing, in particular to a video coding and decoding method and device, and the method comprises the steps: carrying out the feature extraction of an obtained to-be-coded video frame, and obtaining the image features of the to-be-coded video frame; obtaining a coding rate of the to-be-coded video frame; based on a trained resolution detection model, determining a coding resolution corresponding to the to-be-coded video frame by taking the image features and the coding rate as input parameters, wherein the resolution detection model is obtained through iterative training according to the image sample characteristics of each video frame sample, the coding rate sample of each video frame sample and the corresponding resolution label; down-sampling the to-be-coded video frame to the determined coding resolution, and coding the down-sampled to-be-coded video frame to obtain coded data of the video frame. Therefore, the image quality of the live video can be improved.

Description

technical field [0001] The present disclosure relates to the technical field of video processing, and in particular, to a video encoding and decoding method and device. Background technique [0002] At present, since the factors affecting the video quality are different in different scenarios, the encoding parameters used are also different when encoding the video. For example, when encoding action movies, documentaries, cartoons, and sports events, in order to ensure the best image quality and lowest cost in different scenarios, it is necessary to determine the optimal encoding parameters for the video in different scenarios. [0003] In related technologies, the video to be encoded is usually first divided into multiple segments to obtain multiple segments of video, and each segment of video is encoded multiple times using different encoding parameters, and then the segments of video are integrated for overall optimization, thereby obtaining the best video quality. Optima...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/105H04N19/59H04N19/86H04N19/91
CPCH04N19/105H04N19/865H04N19/91H04N19/59
Inventor 韩庆瑞阮良陈功
Owner 杭州网易智企科技有限公司