MRI brain and spine image segmentation and it's applications
| Autor: | Wan-Yuan Lin, 林万淵 |
|---|---|
| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 92 Medical image segmentation is a complex task that requires the integration of knowledge acquired from different domains such as medicine, image processing. In kind of medical images, the MRI has more obvious response for the organ pathological changes and tissue. Because of the high frequency coil effect, the gray value range is not steady in the MRI. So, the segmentation would be more difficult. We design and implement at MR image, proceeds the brain and spine image segmentation. In the brain, we use the automatic region growing method, according the feature of brain in the image to pick brain seeds, and then proceed the region growing, via, use the morphologic and position of the brain to judge the brain regions. In the spine, we use the half-automatic region growing method, defining a rectangle inside the spine in the image by the user. Using the rectangle to extract the gray value feature of spine, pick spine seeds, and then proceeds the region growing. Using the morphologic and position feature process of the spine to judge the spine regions, judging each spine region, to do the refine mechanism. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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