PRIORITY SCHEME BASED ON ERROR CONCEALMENT AND SEQUENCE CHARACTERISTICS USED FOR DRIVING VIDEO CODING AND TRANSMISSION SCHEDULING

摘要

A system and method is provided for adaptively changing as error protection strategy for a digital video transmission depending upon the characteristics of a transmission channel ( 120 ). A video classification processor ( 210 ) located in a video encoder ( 114 ) analyzes a video sequence and (1) determines priority classes for video data packets based on objective criteria, and (2) determines sequence dependent features of the video sequence, and (3) classifies the video data packets in sub-priorities based on the sequence dependent features of the video sequence. The system can also re-classify video data packet priorities based on objective criteria using either the sequence dependent features of the video sequence or an error concealment algorithm.