Tracking of an occluded object in a video sequence

The projection of a 3D scene in a monocular camera focal plan leads to an important loss of information and generates occlusion phenomena. In a video sequence, occlusions management illustrates the crucial problem of motion: interweaving between segmentation and motion estimation. From the data of a piecewise constant optical flow obtained by a multichannel segmentation, we introduce a method for the automatic determination of the "occluding" and the "occluded" objects implied in an occlusion phenomenon. This determination is written as an energy minimization problem.