Extraction of ROI in Medical Image
Pan Qing-feng · Journal of Hangzhou Dianzi University · 2006
This paper focuses on the ROI(region of interest) extraction,which is one of the key problems in med-ical image processing.An efficient approach to ROI extraction based on the combination of watershed transformation and monotonically marching snake integrating ROI information is proposed.First,the original image is smoothed by using nonlinear diffusion filter.Then the smoothed image is over-segmented by the watershed algorithm.Finally,the ROI is extracted automatically by using the snake model.Moreover,the speed function is defined based on the statistical similarity degree of the regions and the ROI energy.Experimental results show that the algorithm can ob-tain segmentation result of medical image fast and accurately.