Tracking of generic objects for video object generation

Abstract

A tracking technique for creating generic video objects is presented. It assumes that the object in the initial image has been previously defined by an object partition. The object tracking relies on the concept of partition projection. The projection of a partition accommodates the previous partition information into the current image. The object partition is re-segmented so a texture partition is created. The texture partition guarantees the spatial homogeneity of each region and it is projected on the following image using motion information. Projected regions are used as markers and, to validate the position of the markers, they are fit into an intra fine partition of the current image. The texture partition of the current image is obtained by a modified watershed algorithm based on the fit markers. Finally, the current object partition is obtained by a labeling process.