Error elimination of compressed video transmission based on H.264

Abstract

The invention is concerned with compressing video transmitting error-code eliminative method based on H.264, in order to eliminate the error-code simply and effectively, it is: combines the error-code cover and the error-code pervasion-control to achieve the error-code elimination by the feedback mechanism of the error-code information; loads the information check error-code occur of the Slice and the statistic of the error-code information such as the losing data location by the serial number of the NALU; establishes the inner error-code information feedback channel of the H.264 system by defining the extending SEI information; achieves the error-code pervasion-control by the sectional time-by-time in-frame coding.

Description

technical field [0001] The invention relates to a method for eliminating bit errors in compressed video transmission, in particular to a method for concealing bit errors in compressed video transmission based on H.264 and a method for suppressing bit error diffusion. Background technique [0002] The International Telecommunication Union Telecommunication Standardization Sector ("ITU-T") in conjunction with the International Organization for Standardization ("ISO") and the International Electrotechnical Commission ("IEC") The H.264 compressed video compression coding standard formulated by the Moving Picture Experts Group (MPEG for short) has gradually become a mainstream standard in multimedia communications. A large number of multimedia real-time communication products adopting the H.264 standard, such as conference TV, videophone, third generation (3rd Generation, referred to as "3G") mobile communication terminals, and network streaming media products have come out succe...

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Problems solved by technology

[0018] In practical application, the above scheme has the following problems: the above error concealment method can only temporarily cover the distortion caused by the error, and the effect of the simple method is not good, the complex method has a large amount of calculation, and the cover substitution will also increase the error code diffusion;

[0019] The implementation mechanisms of the above-mentioned bit error diffusion suppression methods are relatively complicated. In addition to increasing the network burden, the algorithm is too complex to be conducive to real-time processing applications. In addition, the influence of error diffusion cannot be completely removed, resulting in a decline in the quality of the restored image.

[0020] The main reason for this situation is that the alternative mechanism adopted by the independent error concealment method will cause error diffusion; the error diffusion suppression method requires a complex mechanism or an additional feedback channel, which consumes system processing resources and network bandwidth resources

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