Abstract
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.
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