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Comparison of frequency selective extrapolation and patch matching algorithm for error concealment in spatial domain
Published in Association for Computing Machinery
Pages: 70 - 74
Error Concealment (EC) is a popular technique at the decoder side to removing the transmission errors. It is done analyzing the spatial or temporal information from available image regions. Many researches are going on based on this due to its application in different fields such as video-telephone, video-conference, TV, DVD, internet video etc. According to literature survey, there are various types of spatial error concealment techniques such as tensor voting based, interpolation based, stochastic based, etc. In this paper exemplar based error concealment algorithm is compared with Frequency Selective Extrapolation algorithm. Both the works are based on concealment of manually created images or error video frames as input. The parameter used for objective quality measurement was PSNR (Peak Signal to Noise Ratio). The test frame with different error patches are compared with both the Error concealment algorithms. According to simulation results, Frequency Selective Extrapolation is better than patch matching algorithm in terms of both subjective and objective quality of the images or error video frames. © 2016 ACM.
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