Abstract | ||
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The ischaemic heart disease has become one of the leading causes of mortality worldwide. Dynamic single-photon emission computed tomography (D-SPECT) is an advanced routine diagnostic tool commonly used to validate the myocardial function in patients suffering from various heart diseases. Accurate automatic localization and segmentation of myocardial regions is helpful in creating a 3-D myocardial model and assisting clinicians to perform assessments of myocardial function. Thus, image segmentation is a key technology in preclinical cardiac studies. Intensity inhomogeneity is one of the common challenges in image segmentation and is caused by image artifacts and instrument inaccuracy. In this paper, a novel region-based active contour model that can segment the myocardial D-SPECT image accurately is presented. First, a local region-based fitting image is defined based on the information related to the intensity. Second, a likelihood fitting image energy function is built in a local region around each point in a given vector-valued image. Next, the level set method is used to present a global energy function with respect to the neighborhood center. The proposed approach guarantees precision and computational efficiency by combining the region-scalable fitting energy model and local image fitting energy model, and it can solve the issue of high sensitivity to initialization for myocardial D-SPECT segmentation. |
Year | Venue | Field |
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2018 | IEEE Access | Active contour model,Computer vision,Emission computed tomography,Computer science,Segmentation,Level set method,Image segmentation,Artificial intelligence,Initialization,Distributed computing |
DocType | Volume | Citations |
Journal | 6 | 0 |
PageRank | References | Authors |
0.34 | 0 | 9 |
Name | Order | Citations | PageRank |
---|---|---|---|
Chenxi Huang | 1 | 3 | 3.14 |
Xiaoying Shan | 2 | 0 | 0.34 |
Yisha Lan | 3 | 5 | 2.74 |
Lu Liu | 4 | 1501 | 170.70 |
Haidong Cai | 5 | 0 | 0.34 |
Wenliang Che | 6 | 4 | 2.38 |
Yongtao Hao | 7 | 0 | 0.34 |
Yongqiang Cheng | 8 | 4 | 5.44 |
Yonghong Peng | 9 | 400 | 33.39 |