https://scholars.lib.ntu.edu.tw/handle/123456789/83245
Title: | Cell-Competition Algorithm: A New Segmentation Algorithm for Multiple Objects with Irregular Boundaries in Ultrasound Images | Authors: | Chen, Chung-Ming Chou, Yi-Hong Chen, Curtis S.K. Cheng, Jie-Zhi Ou, Yen-Fu Yeh, Fang-Cheng Chen, Kuei-Wu |
Keywords: | Segmentation;Multiple objects;Ultrasound images;Breast lesions;Region competition;Cell competition | Issue Date: | 2005 | Journal Volume: | v.31 | Journal Issue: | n.12 | Start page/Pages: | 1647-1664 | Source: | Ultrasound in Medicine & Biology | Abstract: | Segmentation of multiple objects with irregular contours and surrounding sporadic spots is a common practice in ultrasound image analysis. A new region-based approach, called cell-competition algorithm, is proposed for simultaneous segmentation of multiple objects in a sonogram. The algorithm is composed of two essential ideas. One is simultaneous cell-based deformation of regions and the other is cell competition. The cells are generated by two-pass watershed transformations. The cell-competition algorithm has been validated with 13 synthetic images of different contrast-to-noise ratios and 71 breast sonograms. Three assessments have been carried out and the results show that the boundaries derived by the cell-competition algorithm are reasonably comparable to those delineated manually. Moreover, the cell-competition algorithm is robust to the variation of regions-of-interest and a range of thresholds required for the second-pass watershed transformation. The proposed algorithm is also shown to be superior to the region-competition algorithm for both types of images. (E- mail: chung@ntu.edu.tw) |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/105200 | DOI: | 10.1016/j.ultrasmedbio.2005.09.011 | SDG/Keyword: | Biological organs; Cell culture; Cells; Image analysis; Image segmentation; Ultrasonics; Breast lesions; Cell competition; Multiple objects; Region competition; Segmentation; Ultrasound images; Watershed transforms; Algorithms; algorithm; article; breast; comparative study; echography; image analysis; image display; imaging system; priority journal; Algorithms; Breast Diseases; Female; Humans; Image Interpretation, Computer-Assisted; Ultrasonography; Ultrasonography, Mammary |
Appears in Collections: | 醫學工程學研究所 |
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