A FAST AND ACCURATE NUMERICAL METHOD FOR MEDICAL IMAGE SEGMENTATIONA FAST AND ACCURATE NUMERICAL METHOD FOR MEDICAL IMAGE SEGMENTATION
- Other Titles
- A FAST AND ACCURATE NUMERICAL METHOD FOR MEDICAL IMAGE SEGMENTATION
- Authors
- 김준석; YIBAO LI
- Issue Date
- 2010
- Publisher
- 한국산업응용수학회
- Keywords
- image segmentation; Allen-Cahn equation; phase-field method
- Citation
- Journal of the Korean Society for Industrial and Applied Mathematics, v.14, no.4, pp.201 - 210
- Indexed
- KCI
- Journal Title
- Journal of the Korean Society for Industrial and Applied Mathematics
- Volume
- 14
- Number
- 4
- Start Page
- 201
- End Page
- 210
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117582
- ISSN
- 1226-9433
- Abstract
- We propose a new robust and accurate method for the numerical solution of medical image segmentation. The modified Allen-Cahn equation is used to model the boundaries of the image regions. Its numerical algorithm is based on operator splitting techniques. In the first step of the splitting scheme, we implicitly solve the heat equation with the variable diffusive coefficient and a source term. Then, in the second step, using a closed-form solution for the nonlinear equation, we get an analytic solution. We overcome the time step constraint associated with most numerical implementations of geometric active contours. We demonstrate performance of the proposed image segmentation algorithm on several artificial as well as real image examples.
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Collections - College of Science > Department of Mathematics > 1. Journal Articles
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