A video perceptual coding method and device

Abstract

The invention discloses a video perception coding method and device. The method comprises the following steps: acquiring video information; initializing parameter configuration; selecting a hierarchyand an object thereof to be coded currently; and coding the object, verifying a coding result of the coding based on a subjective quality model of the hierarchy, and selecting the coding result. The video perception coding method provided by the invention not only can strictly satisfy the subjective coding quality requirements of users at each hierarchy, but also can achieve a better coding efficiency at each level, so that the overall coding efficiency is better, and a greater video compression and video transcoding efficiency can be achieved on the premise of guaranteeing that there is no subjective loss or subjective loss of a given degree.

Description

Technical field [0001] This application relates to the field of computers, in particular to a video perceptual coding method and device. Background technique [0002] With the continuous development of digital video services in multimedia applications, the demand for video cloud computing continues to increase. The data volume of the original video source is too large for the existing wired and wireless transmission network bandwidth and storage resources. Therefore, the data compression during the transmission and storage of video signals has become one of the hotspots of current research and application. The purpose of video data compression (also called video coding) is to eliminate various data redundancy of the video signal. [0003] Video coding often brings some coding distortion (quality loss). However, in environments such as video distribution, compression format conversion and other transcoding applications, and high-definition video recording, the subjective quality o...

AI Technical Summary

Problems solved by technology

The above method has the following problems: (1) most of the existing video coding tools are trained with the model J=D+λ*R, and directly building a new model will produce a single coding efficiency that is significantly reduced; (2) ) The simple one-time encoding process of modifying blocks still cannot guarantee the final subjective quality of the video. It is necessary to establish an overall video encoding architecture and complete a more complex encoding process to ensure that the subjective quality of the video meets user needs.

Images