In this paper, the error concealment techniques as motion vector extrapolation (MVE), boundary matching (BM), side matching (SM), 16/spl times/16-MB-based and 8/spl times/8-block-based concealment are implemented and compared with feedback-based no waiting ARQ (NWARQ) error recovery technique. A new error concealment method using preprocessing (PREP) and search is proposed and implemented. This new method tries to use the information of surrounding MV as much as possible, and find a more precise motion vector using additional search processing in a search window centered by the estimated motion vector. Simulation results, based JM1.4 codec of JVT, show that both NWARQ and PREP can significantly improve the reconstruction video quality. And the combined PREP, SEARCH and NWARQ techniques can greatly achieve improved performance. From the simulation results, the SM and 16/spl times/16-MB-based concealment methods show better performance than BM and 8/spl times/8-block-based concealment.
Research on feedback-based error concealment techniques for packet video transmission
2003-01-01
294838 byte
Conference paper
Electronic Resource
English
Research on Feedback-Based Error Concealment Techniques for Packet Video Transmission
British Library Conference Proceedings | 2003
|Directional error-concealment technique for intracoded video frames
British Library Online Contents | 2006
|Error Concealment for Slice Group Based Multiple Description Video Coding
British Library Conference Proceedings | 2005
|Effect of concealment techniques on perceived video quality
British Library Conference Proceedings | 1999
|