Video coding-decoding processing method

Abstract

A method for video encoding and decoding process. The method comprises the steps as following: transform sub-block dividing each MB included in each set of macro blocks; sorting out all the sub-blocks which suffered the transform sub-block process in each set of macro blocks encoding and transmitting the header information of each set of macro blocks, the header information of macro blocks and the transform coefficients of each kind of sub-block set by the transmitting side; decoding the bit streams which were exactly received to restore the image information of corresponding sub-block by the receiving side for each sub-block which produces error codes , inserting approach image information by the receiving side on the basis of the image information of the adjacent sub-blocks. The error resilience process can be more accurately accomplished for the error bit stream due to transmission channel quality by means of the present invention. The invention can reduce the distortion of video image on vision and improve the effect of video communication.

Description

technical field [0001] The invention relates to the field of multimedia communication, in particular to a video codec processing method. Background technique [0002] In a multimedia communication system, video image quality plays a key role in multimedia communication performance. However, often due to the quality of the transmission channel, the coded stream of the video image will experience packet loss and bit errors during the transmission process, especially the bit error rate and packet loss rate of the wireless transmission channel are relatively high. , and the bandwidth changes greatly, so that the video image receiver cannot receive the coded stream of the video image completely and correctly, and if a better video communication effect is to be obtained, it is necessary to correct the received error code Streams (including erroneous bit streams and discarded bit streams, etc.) are subjected to anti-error processing, so that the video image recovered from decoding...

AI Technical Summary

Problems solved by technology

[0025] Since the FMO video coding processing technology uses the macroblock MB as the basic processing unit for codec processing, although it has a good concealment effect on the error code stream caused by the quality of the transmission channel, in the process of video image restoration, its According to the restored image information of other adjacent macroblocks MB, the approximate image inserted in the errored macroblock still has a large visual distortion, so that the video communication cannot achieve the expected effect.

Images