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A region-based error concealment method for livestream videos
Wang Mengyuan,Wang Jing *
Department of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100089
*Correspondence author
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Funding: none
Opened online:29 January 2022
Accepted by: none
Citation: Wang Mengyuan,Wang Jing.A region-based error concealment method for livestream videos[OL]. [29 January 2022] http://en.paper.edu.cn/en_releasepaper/content/4756191
 
 
This paper proposes a video error concealment method for the reconstruction of large size corrupted regions of livestream videos. The method adopts different spatial and temporal error concealment methods according to the characteristics of livestream frames and can keep a well balance on time-cost and performance. First, the method named motion vector estimation is performed for small motion regions. Then it uses the improved adaptive homography transform to reconstruct unknown regions in each frame. Finally, a spatial error concealment method known as bilinear interpolation is performed to conceal the macroblocks with poor effect after above two steps. Experiment results show that the proposal has the same performance as the baseline paper for livestream videos, and it is less time-consuming which can be applied in real livestream applications.
Keywords:Error Concealment, Homography, Motion Vector
 
 
 

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