Depth order estimation for video frames using motion occlusions
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This study proposes a system to estimate the depth order of regions belonging to a monocular image sequence. For each frame, the regions are ordered according to their relative depth using information from the previous and following frames. The algorithm estimates occlusions relying on a hierarchical region-based representation of the image by means of a binary tree. This representation is used to define the final depth order partition which is obtained through an energy minimisation process. Finally, to achieve a global and consistent depth ordering, a depth order graph is constructed and used to eliminate contradictory local cues. The system is evaluated and compared with the state-of-the-art figure/ground labelling systems showing very good results.
CitationPalou, G.; Salembier, P. Depth order estimation for video frames using motion occlusions. "IET computer vision", 01 Abril 2014, vol. 8, núm. 2, p. 152-160.