Error Resilience Scheme for MPEG-4 Video Streams
The quality of decoded video in erroneous environment depends on efficient detection and concealment of errors.In this paper,an improved error detection technique and a novel temporal error concealment technique for MPEG-4 video are proposed.The proposed detection technique can detect efficiently some transmission error as well locate the exact position of the first error.The proposed temporal concealment method can mask the impairments caused by the detected error significantly with very low computation complexity.The performance of the proposed detection and concealment techniques are evaluated with multiple video sequences at different bit error rates (BEKs).Experimental results show the improved detection technique combining with the proposed temporal concealment method can increase the video quality efficiently.The proposed error resilience scheme is suitable for real-time video implementations.
error detection error concealment MPEG-4 transmission error BER
Xuewen Ding Guangquan Xu
Tianjin Engineering Center for Fieldbus Control Technology,Tianjin University of Technology and Educ School of Computer Science and Technology Tianjin University Tianjin,PR of China
国际会议
太原
英文
252-256
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）