Abstract
Abstract: The MPEG-4 visual standard supports the trend in video object segmentation for spatial segmentation process in only one way. Therefore, this paper presents the spatial segmentation process according to MPEG-4. The spatial segmentation includes image simplification, gradient operation and watershed algorithm. This paper presents the morphological tools to use in the segmentation process. Firstly, the morphological filters are used to simplify the image by open-close operation by partial reconstruction while preserve the boundary information. Secondly, the multiscale gradient operator is used to reduce the oversegmentation and also preserve the homogenous region boundary. This simplification and labeling of the region method give the homogenous region and the small number of regions. Finally, the uncertain pixels are reduced for using with the watershed algorithm.