A block-based temporal segmentation algorithm for moving pictures

In this Paper we propose a block-based temporal segmentation? algorithm for the object-based video compression. It consists of three steps: the change detection, the block merge, and the block segmentation. The first step separates the change detected region from background Here, a new method of removing the uncovered region without motion estimation is presented. The second step, composed of three substeps, estimates motions for the changed detected region and merges blocks with similar motions Here, we provide merging conditions for each substep as criteria In the final block, the boundary block is segmented on the pixel basis. After describing our algorithm in detail, we present some experimental results step by step along the processing steps The result tells that the proposed algorithm removes the uncovered region effectively and produces well-segmented objects.