| 研究生: |
張家禎 Chang, Chia-Chen |
|---|---|
| 論文名稱: |
動態輪廓線模型及其在醫學3D影像上之應用 An Active Contour Model and Its Applications in Medical 3D Imaging |
| 指導教授: |
陳立祥
Chen, Lih-Shyang |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 電腦與通信工程研究所 Institute of Computer & Communication Engineering |
| 論文出版年: | 2005 |
| 畢業學年度: | 93 |
| 語文別: | 中文 |
| 論文頁數: | 75 |
| 中文關鍵詞: | 動態輪廓線模型 、輪廓線 |
| 外文關鍵詞: | active contour model, contour, acm |
| 相關次數: | 點閱:93 下載:4 |
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物件輪廓線的取得在影像處理中佔了相當重要的角色,且輪廓線取得的精準性與方便性,也是決定一影像處理系統好壞的重要因素。而動態輪廓線模型是由影像系統或使用者給定一條初始輪廓線,然後ACM會將輪廓線變形到精確的位置上,如此可以大幅減少使用者繪製輪廓線的時間與心力。
本論文利用了離散動態輪廓線模型為基礎加以改良,改善傳統動態輪廓線模型的準確性不足之處。在新的模型中,新增對彩色影像的支援,並以增強前處理的方式,減少變形過程發生錯誤的機率;另外也將邊緣偵測後的結果加以評估,增加器官邊緣的正確性;另外在變形過程中加入錯誤偵測的功能,讓變形錯誤時不會在下一次變形中被放大。
A contour extraction plays an important role in image segmentation. The accurate and convenience that the contour has been made is the important factor of determining an image process system quality. The image system or users give an initial contour to the Active Contour Model, and the initial contour will be out of shape to at accurate position. This will reduce time and effort of drawing contour by user.
This thesis has been based on Discrete Dynamic Contour Model and improved, and the week of accuracy of traditional Active Contour Model has been improved. In the new model, the color image support has been added, and by way of enhance preprocess to reduce error probability of deformation. The edge has been evaluated to increase accurate of organ edge. Join error detect function in deformation to prevent mistakes to be enlarged in next time of deformation.
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