Marcelino, S.Assunção, P.Faria, S.M.M.Soares, S.2026-03-192026-03-192013-09S. Marcelino, P. Assuncao, S. M. M. Faria and S. Soares, "Depth map concealment using interview warping vectors from geometric transforms," 2013 IEEE International Conference on Image Processing, Melbourne, VIC, Australia, 2013, pp. 1821-1825, doi: 10.1109/ICIP.2013.6738375.978-147992341-0http://hdl.handle.net/10400.8/15921This paper deals with reconstruction of corrupted depth maps received by multivew 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 5.61dB, at data loss ratios up to 40%.engError concealmentDepth mapGeometric transformsconference paper10.1109/icip.2013.6738375