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Rate-Distortion Based Segmentation of Tumor Region in an Breast Ultrasound Volume Image  

Kwak, Jong-In (Department of Electronic Engineering, Kyungpook National University)
Kim, Sang-Hyun (Department of Multimedia Engineering, Youngsan University)
Kim, Nam-Chul (Department of Electronic Engineering, Kyungpook National University)
Publication Information
Abstract
This paper proposes an efficient algorithm for extracting a tumor region from an breast ultrasound volume image by using rate-distortion (R-D) based seeded region growing. In the proposed algorithm the rate and the distortion represent the roughness of the contour and the dissimilarity of pixels in a region, respectively. Staring from an initial seed region set in each cutting plane of a volume, a pair of the seed region and one of adjacent regions whose R-D cost is minimal is searched and then they are merged into a new updated seed region. This procedure is recursively performed until the averaged R-D cost values per the number of contour pixels in the seed region becomes maxim. As a result, the final seed region has good pixel homogeneity and a much smooth contour. Finally, the tumor volume is extracted using the contours of the final seed regions in all the cutting planes. Experimental results show that the averaged error rate of the proposed method is shown to be below 4%.
Keywords
초음파 볼륨;흉부 종양;영상 분할;율왜곡;
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Times Cited By KSCI : 1  (Citation Analysis)
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