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Snake approach for motion tracking of heart vessels in angiographic sequence
Author(s): 
Pages: 1779-1783
Year: Issue:  11
Journal: CHINESE JOURNAL OF MEDICAL IMAGING TECHNOLOGY

Keyword:  冠状血管造影术运动跟踪Snake动态规划;
Abstract: 本文提出一种对心血管造影图像序列中的血管段进行运动跟踪的方法.采用Snake模型,将前一帧图像中Snake的停留位置作为当前帧Snake的初始位置,选择适当的能量函数,使能量函数最小,Snake 变形得到当前时刻的血管骨架.分别采用动态规划算法和贪婪算法求解最优化问题,并从迭代次数、计算时间和收敛性方面进行比较;采用临床得到的冠状动脉造影图像序列对算法进行验证.
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