Automatic segmentation of head mri images by knowledge guided thresholding
✍ Scribed by Hidetomo Suzuki; Jun-ichiro Toriwaki
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 737 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0895-6111
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✦ Synopsis
In this paper we present a procedure which automatically extracts soft-tissue from multi-sliced head MRI images, and then displays three-dimensional shapes of the extracted soft-tissues. We use an iterative thresholding algorithm for segmentation in which an optimum threshold value is decided based on a goodness measure we proposed. This procedure can be used in a preliminary diagnosis in brain surgery without much effort of users, because of whole procedure including threshold selection and segmentation is performed automatically for rendering a three-dimensional image of soft-tissue's surface on a graphic terminal.