【作者】 马睿； 卢艳平；

【Author】 Ma Rui, Lu Yan-ping ICT Research Center, Key Laboratory of Optoelectronic Technology and System of the Education Ministry of China, Chongqing University & College of Mathematics and Physics, Chongqing University, Chongqing, 400044, P. R. China

【机构】 重庆大学光电技术及系统教育部重点实验室ICT研究中心；

【摘要】 在工业虚拟内窥镜所涵盖的诸多技术中,漫游技术是其中最重要的一环,而中心轴径提取的好坏直接影响着漫游时的效果。本文提出了一种中心轴径的提取及处理方法,就是选取部分切片,在二值图上采用细化方法提取中心轴径, 并用三次B样条对所提取的中心轴径进行了平滑插值。本文的算法时间复杂度低、运算量小、速度快,而且得到的中心轴径准确、平滑,保证了漫游的顺利进行。本文针对工业CT图像进行了实验,实验结果表明了该算法的有效性。更多还原

【Abstract】 Industrial virtual endoscope contains a good many technology, in which navigation technology is the most important, while the extraction of centerline has direct effect on the navigation. This paper proposed an algorithm about extraction and disposal of centerline, it chooses part of slices to extract center by thinning on 2D image, and then cubic B-spline curve is used to smoothing interpolate the extracted centers. The algorithm has low time and operational complexity, while the extracted centerline is accurate and smooth, that assures the navigation go on wheels. The experimentations are based on industrial CT image, and the results show the validity of the algorithm.更多还原