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Image error concealment using edge map and linear prediction residue watermarking and spatial smoothing

A very efficient and simple method for error concealment in image communication over packet loss networks is presented. The method involves embedding a combination of edge map and linear prediction residue of each image block as a robust watermark within the original image at the transmitter and using the extracted watermark along with spatial smoothing at the receiver in order to reconstruct the lost parts. The performance of the proposed scheme shows a 2 dB improvement over state of the art error concealment algorithms.