Title :
Texture analysis method for shape-based segmentation in medical image
Author :
Chang, Qing ; Zhang, Bin ; Liu, Ruixiang
Author_Institution :
Sch. of Inf. Sci. & Eng., East China Univ. of Sci. & Technol., Shanghai, China
Abstract :
In this paper, we present a fully automatic algorithm for segmentation of the prostate from the lower abdomen of male patients´ CT images. A statistical shape prior is adapted to the process of prostate segmentation. Shape variability of the prostate is derived from expert manually segmented images. Furthermore, we also propose to use genetic algorithm to perform the let set curve evolution. Each individual of the GA population represents a segmenting contour. The fitness of each individual is evaluated based on the texture of the region it encloses. Compared to the manual gold standard segmentations, the results of our automatic segmentation approach after the adaptation of the statistical shape model and GA indicate that our method meets promising results and clinical application.
Keywords :
biological organs; computerised tomography; genetic algorithms; image segmentation; image texture; medical image processing; statistical analysis; GA population; automatic segmentation approach; fully automatic algorithm; genetic algorithm; gold standard segmentations; lower abdomen; male patients CT images; medical image; prostate segmentation; segmented images; segmenting contour; set curve evolution; shape variability; shape-based segmentation; statistical shape model; statistical shape prior; texture analysis method; Biomedical imaging; Computed tomography; Genetic algorithms; Image segmentation; Shape; Training; Vectors; Genetic algorithm; medical image; prostate segmentation; shape priors;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6100395