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Conference proceedings article

Title Depth map concealment using inter-view warping vectors from geometric transforms
Author Sylvain T. A. Marcelino, Pedro Assunção, Sérgio Faria, Salviano F. S. P. Soares
Booktitle Proc. of the IEEE Int. Conf. on Image Processing (ICIP)
Address Melbourne, Australia
Pages 1821-1825
Month September
Year 2013
Group (before 2015) Signal Processing Laboratory
Indexed by ISI Yes
Scope International

This paper deals with reconstruction of corrupted depth maps received by multiview video-plus-depth (MVD) decoders from error prone channels. An interview-based method is proposed using warping vectors obtained through a block matching approach with geometric transforms (BMGT) between two colour views. It is shown that BMGT is able to find efficient warping vectors for reconstruction of lost regions in the depth maps associated with the colour views. The proposed concealment method uses an additional contour reconstruction technique, applied to arbitrary shapes within the lost regions, which is used for weighted interpolation. In comparison to a reference method based on simple weighted interpolation, the proposed method is able to achieve PSNR gains in synthesised views up to 5.61 dB, at data loss ratios up to 40%.