Video processing and encoding method and device and readable storage medium

A video processing and video technology, applied in the field of video coding and decoding, can solve problems such as compression noise and compression distortion, achieve the effect of reducing bit rate and improving subjective quality

Active Publication Date: 2019-09-20
杭州微帧信息科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] Compression noise is introduced in the process of video compression encoding, that is, compression distortion

Method used

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  • Video processing and encoding method and device and readable storage medium
  • Video processing and encoding method and device and readable storage medium
  • Video processing and encoding method and device and readable storage medium

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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification. , the described embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments of this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0018] The technical solutions provided by the embodiments of this specification will be described in detail below in conjunction with the accompanying drawings.

[0019] see figure 1 , is a schematic flowchart of a machine learning method for implementing effective adaptive video processing and encoding provided by an embodiment of the present invention, as shown ...

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Abstract

The invention provides a novel method and device for estimating video compression noise through machine learning and a computer readable storage medium. Based on video features such as code rate, texture space gradient and motion time gradient of a video, compressed noise is estimated through a compressed noise estimation model, and preprocessing algorithm parameters in video preprocessing are adjusted in a self-adaptive mode according to the estimated compressed noise, so that effective compression of a video is achieved, and on the premise that the subjective quality is the same, the video coding rate can be greatly reduced; or under the same code rate, the subjective quality of the video can be greatly improved.

Description

technical field [0001] The present invention relates to the technical field of video codec, in particular to the estimation of video compression noise in video codec. Background technique [0002] Video has developed into an important tool for people's entertainment and office work. The popularity of 4K, HDR and other videos and the growth of video transmission requirements have brought huge pressure on storage resources and network bandwidth. The development of various applications has produced various types and quality. These problems have brought strong demands and challenges to video coding and video enhancement technologies. Therefore, video coding technology and video enhancement technology have become research hotspots in academic and industrial circles. [0003] Compression noise, that is, compression distortion, is introduced in the process of video compression encoding. The same video is compressed and coded with different degrees of compression. The greater the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/42H04N19/44H04N19/85G06N20/00
CPCG06N20/00H04N19/42H04N19/44H04N19/85
Inventor 刘佳扬庄育珊许祝登刘宇新朱政
Owner 杭州微帧信息科技有限公司
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