摘要
为提取CT扫描图像区域轮廓线,对现有的区域边界生成方法进行改进.使用扫描线算法,对图像中的指定区域构造出每一扫描行上的该区域外边界的边缘点对,然后利用相邻扫描线上的边缘点对的相关性,在相邻扫描行的边缘点之间建立链接,并使用链码表示区域的边界.实验证明,改进算法可以取得清晰度较高的图像.
The area contour retrieving in CT scanned image is the preconditions of the information reconstruction of body 3D model. In this paper improvement algorithm to the foregone methods is summarized to obtain better area contour line on CT scanned image. For the specifying area in image the improvement algorithm constructs the edge dot pair of area outer verge in every scanned line, then builds links between edge dots in adjacent scanned rows by the correlation of edge dot pair and express the area verge using chain code. The results of retrieved contour shows that the improvement algorithm can obtain better results.
出处
《大庆石油学院学报》
CAS
北大核心
2007年第2期75-77,共3页
Journal of Daqing Petroleum Institute
基金
黑龙江省自然科学基金项目(F2004-01)
关键词
CT扫描图像
轮廓线
链码
信息重构
CT image
contour
chain code
information reconstruction
