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Hybrid Error Concealment Using Linear Interpolation

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2 Author(s)
Bor Nang Chen ; Dept. of Commun. Eng., Nat. Central Univ., Chung-li ; Yinyi Lin

In this paper we extend the previous work (B.N. Chen and Y. Lin, 2006) and propose a hybrid error concealment algorithm using linear interpolation for error-prone video transmission channel. In the proposed hybrid algorithm, the selective motion field interpolation (SMFI) is first employed to conceal the erroneous macroblock. The spatial and temporal boundary-matched errors are then used to check whether the SMFI conceals the erroneous macroblock properly. If the temporally recovered macroblock is reconstructed incorrectly, the spatial error concealment using linear interpolation is employed to conceal the damaged macroblock instead of SMFI. The proposed hybrid algorithm employs the linear interpolation on both spatial and temporal error concealment and the computational complexity is reasonably low. It possesses benefit of easy implementation and can achieve better performance subjectively as well as objectively over other error concealment techniques. Simulation was conducted on the H.263 codec and the experimental results reveal that the proposed algorithm significantly outperforms other concealment techniques

Published in:

Communications and Information Technologies, 2006. ISCIT '06. International Symposium on

Date of Conference:

Oct. 18 2006-Sept. 20 2006

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