Research of Medical Image Segmentation Based on Improved Watershed Algorithm
Xiangmin Xu · Microelectronic Technology · 2003
Considered the uniqueness of medical image the watershed algorithm is improved and applied to the segmentation of the medical image. Watershed algorithm is commonly applied to the segmentation, but there is a sever problem of over-segmentation. This paper is to expound some improvements based on the current base of watershed algorithm. These improvements are: before watershed algorithm, to introduce a floating-point active-image as the input of watershed algorithm and after watershed algorithm, to incorporate some small segmented regions into the near bigger region based on the area control, and at the same time according to the incorporated criterions of area and contrast control. By means of the improved method, the phenomena of over-segmentation are well restrained, and small regions with pathological change are well segmented. The effect of this method is very well.