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Improved Error Detection and Localization Technique for MPEG-4 Video

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6 Author(s)
Xuewen Ding ; Sch. of Electron. Inf. Eng., Tianjin Univ. ; Zhaoxuan Yang ; Aiping Yang ; Yuan Yu
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Robust video transmission over wireless channels is very critical due to channel impairments and to their effect on the compressed bitstream. Error detection is a clue point as, if errors are detected, their concealment may be performed. However, traditional error detection techniques aren't enough for detection. In this paper, an improved error detection and localization technique is proposed. The proposed scheme first detects corrupted video packets (VPs) by checking a set of error-checking conditions. It then locates the exact location of the first transmission error within the corrupted video packet by using a block-based checking procedure. The performance of this scheme is evaluated with multiple video sequences at different bit error rates (BERs). Experimental results show the error detection ratio (EDR) for different types of transmission error is more than 90%, close to 100% sometimes. And the scheme can increase the video quality efficiently by combining with error concealment method

Published in:

Signal Processing, 2006 8th International Conference on  (Volume:4 )

Date of Conference:

16-20 2006