Video coding-decoding processing method

Abstract

The method includes steps: carrying out subprocess of transforming subblocks for each block inside each macro group respectively; sorting process is carried out for all subblocks after transform process inside each macro group; sending party sends encoded transformation coefficients of header information of each macro group, header information of macro block and each class of sub block group; receiving party carries out decoding proves for corrected received code stream respectively in order to recover image information of corresponding sub block; base on image information of relevant sub blocks, the receiving party carries out image information process in insertion approach algorithm for each sub block of containing error code. The invention is capable of carrying out process of anti error code more precisely for stream of error code caused by quality of transmission channel. Features are: lowering visual distortion of video image and raising 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.

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