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入,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。
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.
出处
《微机发展》
2004年第12期39-41,44,共4页
Microcomputer Development
关键词
凸包
CT图像
表面重建技术
轮廓提取
面貌复原
convex hull
CT image
surface reconstruction
contour extracting
facial reconstruction
