A low-complexity error-resilient H.263 coder

摘要

We propose a low-complexity error-resilience method which is compatible with the emerging H.263 standard. The proposed method, which corrects one slice of lost information exactly or partially, is specifically suited to the packet networks such as internet where the majority of the errors are due to packet losses. The proposed method is simple and to decode the overhead information (protection data) no extra software or hardware is required. The amount of generated overhead is minimal as is the delay to reconstruct lost information. Using this method, it is possible to easily trade-off bits between the source and protection data, hence achieving a simple adaptation method to the current status of the transmission link.