Spatial segmentation based on modified morphological tools
Datchakorn Tancharoen, SOMCHAI JITAPUNKUL, S. Chompun · 2002
The MPEG-4 visual standard supports the trend in video object segmentation for the spatial segmentation process in only one way. Therefore, this paper presents the spatial segmentation process according to MPEG-4. The spatial segmentation includes the 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 the open-close operation by partial reconstruction while preserving the boundary information. Secondly, the multiscale gradient operator is used to reduce the oversegmentation and also preserve the homogeneous region boundary. This simplification and labeling of the region method give the homogeneous region and the small number of regions. Finally, the uncertain pixels are reduced for use with the watershed algorithm.