This paper presents a new video segmentation scheme for object-oriented MPEG-4 video coding. In the scheme, the object motion is modeled by quadratic transform with coefficients estimated via a nonlinear Quasi-Newton method. To effectively merge the regions with similar motions within an image, a region merging process, which is guided by a weighted region adjacency graph, is employed. Simulation results show the proposed scheme provides high performance in terms of segmentation accuracy and video compression ratio.
|Publication status||Published - 2004|
|Event||International workshop on systems, signals and image processing. - Poznan, Poland|
Duration: 13 Sep 2004 → 15 Sep 2004
|Conference||International workshop on systems, signals and image processing.|
|Period||13/09/04 → 15/09/04|