We propose a novel compact representation for stereoscopic videos - a 2D video and its depth cues. Depth cues are derived from an interactive labeling process during 2D-to-3D video conversion, they are contour points of foreground objects and a background geometric model. By using such cues and image features of 2D video frames, depth maps of the frames can be recovered. Compared with traditional 3D video representation, the proposed one is more compact. We also design algorithms to encode and decode the depth cues. The representation benefits both 3D video generation and coding. Experimental results demonstrate that the bit rate can be saved about 10%-50% in coding 3D videos compared with multi-view video coding and 2D+depth methods. A system coupling 2D-to-3D video conversion and coding (CVCC) is proposed to verify advantages of the representation.
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