| 基于凸包算法的三维表面重建中边缘轮廓提取 |
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| 引用本文： | 曾筝,陈晓,周宏,周建中.基于凸包算法的三维表面重建中边缘轮廓提取[J].微机发展,2004,14(12):39-41,44. |
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| 作者姓名： | 曾筝 陈晓 周宏 周建中 |
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| 作者单位： | [1]华中科技大学水电与数字化工程学院，湖北武汉430074 [2]总后军需装备研究所，北京100088 |
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| 摘 要： | 在三维表面重建过程中，边缘轮廓的提取起着关键的作用。为了对头部CT图片中的颅骨边缘进行有效地提取，提出利用平面凸包进行边缘轮廓提取的方法。利用该方法提取出头部CT图像中的颅骨边缘，并将其作为三维表面重建中的轮廓输人，取得了良好的效果。同时，将通过该方法得到的颅骨边缘应用于基于颅骨的三维面貌复原技术研究中，为面貌复原技术的发展提供了新的思路。
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| 关 键 词： | 凸包 CT图像 表面重建技术 轮廓提取 面貌复原 |
| 文章编号： | 1005-3751(2004)12-0039-03 |
Extracting Contour in 3-D Surface Reconstruction Based on Convex Hull Algorithm |
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| ZENG Zheng,CHEN Xiao,ZHOU Hong,ZHOU Jian-zhong.Extracting Contour in 3-D Surface Reconstruction Based on Convex Hull Algorithm[J].Microcomputer Development,2004,14(12):39-41,44. |
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| Authors: | ZENG Zheng CHEN Xiao ZHOU Hong ZHOU Jian-zhong |
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| Affiliation: | ZENG Zheng~1,CHEN Xiao~2,ZHOU Hong~2,ZHOU Jian-zhong~1 |
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| Abstract: | Extracting contour is a key step in 3-D surface reconstruction. In this paper, a new method is presented for extracting contour in 3-D surface reconstruction based on convex in order to find right contours in extracting CT images of head. Employing this method, a set of skull contours are gained and 3-D surface reconstruction is completed. Experiments show that it has a good result. Further more, 3-D facial reconstruction based on skull through using these skull contours is discussed. |
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| Keywords: | convex hull CT image surface reconstruction contour extracting facial reconstruction |
| 本文献已被 CNKI 维普 等数据库收录！ |
