Abstract: A method for protecting video transmission based on H.264 is disclosed, In the invention, a receiving end performs statistical analysis on the communication quality and the result is fed back to a transmitting end, the transmitting end adjusts the protection strategy self adaptively; the receiving end performs statistical analysis on the accumulated lost slice rate and position information about lost data based on the discontinuous situation of NALU sequence numbers; the receiving end feeds the statistical information back to the transmitting end with extended SEI message; the transmitting end configures two sets of protection strategy systems to separately protect critical data and non critical data, and selects the protection strategy of appropriate level according to the accumulated lost slice rate that is fed back; the receiving end transmits position information about lost data back to the transmitting end; the transmitting end resends the lost data.

Abstract: The invention relates to a method for eliminating errors in compressed video transmission. A method for eliminating errors in H.264 compressed video transmission is disclosed, to eliminating errors in a simple and efficient manner. In the invention, an error information feedback mechanism is used in combination with error concealment and error propagation suppression to eliminate errors. An error is detected and statistics of error information, such as position of lost data, is obtained by sequence numbers of NALUs and information for carrying slices. An error information feedback channel is established in H.264 architecture by defining an extended SEI message. The error propagation is suppressed by segment-wise intra-coding in batches.