AVS (Audio Video Standard) intra mode decision method and AVS intra mode decision device

Abstract

The invention discloses an AVS (Audio Video Standard) intra mode decision device, comprising an intra mode decision scheduling control module, an intra prediction module, a rate-distortion cost calculation and mode decision module and an intra mode decision output module. The intra mode decision scheduling control module is used for controlling a series of processing flows, such as input, command control, function scheduling and data output of the intra prediction module, the rate-distortion cost calculation and mode decision module and the intra mode decision output module; the intra prediction module is used for generating the corresponding prediction data in each mode of each data block so as to enter a rate-distortion optimization flow line, and the intra prediction module performs intra prediction by reconstructed data; the rate-distortion cost calculation and mode decision module is used for calculating the rate-distortion cost of each mode, simultaneously performing intra mode decision and outputting the result to the intra mode decision output module; and the intra mode decision output module is used for outputting the mode information of the optimal mode, the reconstructed data and the entropy coding information. Meanwhile, the invention also discloses an AVS intra mode decision algorithm.

Description

technical field [0001] The invention relates to the technical field of digital video encoding and decoding, in particular to an AVS intra-frame mode decision method and device. Background technique [0002] In order to meet the high standard requirements of modern digital TV broadcasting, digital storage media, network streaming media, multimedia communication, etc. for the compression of moving images, the second-generation AVS (Advanced coding of audio and vide) standard independently developed by my country has come into operation. As a result, its relatively low complexity and outstanding encoding performance has become a very competitive force in the field of digital media. In the field of video compression, in order to eliminate spatial redundancy, the H.264 / AVC standard first introduced spatial multi-directional intra-frame prediction into the application, and received a good spatial compression effect. The AVS standard also introduces an intra-frame prediction algori...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the invention is how to greatly reduce the complexity of the device under the condition of ensuring objective high-quality performance

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