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25 June 2018 Temporal error concealment using quad-tree prediction and coherency sensitive hashing for HEVC
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Abstract
This paper presents a temporal video error concealment method specially designed for H.265/HEVC. We propose the quad-tree partitioning prediction and the coherency sensitive hashing in order for better error concealment performance in the corrupted frames via HEVC codec. First, we try to deduce the most probable partitioning of the missing coding tree unit (CTU) using the proposed quad-tree partitioning prediction, which generates several CUs that constitute the CTU. Then, a coding unit (CU) priority choosing method is applied to select the best one from these CUs for prior concealment. Last, the coherency sensitive hashing is adopted for concealing the chosen best CU for better searching quality. The experiments shows that the recovery performance of the purposed method surpasses the compared state-of-the-art methods since the quad-tree partitioning prediction, the priority choosing process, and the coherency sensitive hashing help to improve the overall performance.
© 2018 SPIE and IS&T 1017-9909/2018/$25.00 © 2018 SPIE and IS&T
Xiangyu Hu, Ran Ma, Liquan Shen, Tong Li, Ping An, and Honghe Zheng "Temporal error concealment using quad-tree prediction and coherency sensitive hashing for HEVC," Journal of Electronic Imaging 27(3), 033039 (25 June 2018). https://doi.org/10.1117/1.JEI.27.3.033039
Received: 8 March 2018; Accepted: 21 May 2018; Published: 25 June 2018
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