Abstract: An improved error detection method and a novel Error Concealment (EC) algorithm at the decoder for color plus depth formatted stereoscopic video transmission are presented. The encoding mode of the corrupted macroblock is predicted by the adjacent macroblocks and depth information. In the case that the encoding modes of macroblocks around the corrupted one are inconsistent, the encoding mode of the erroneous macroblock is predicted by the adjacent macroblock whose depth value is closest to that of the corrupted one. According to the encoding mode, the corrupted macroblock is reconstructed by intra-view or inter-view correlation. The experimental results show that the proposed EC algorithm provides 0.8-6.0 dB quality improvement of PSNR against the conventional Boundary Matching Algorithm (BMA) and achieves better subjective quality.