光流法在冠状动脉运动分析中的应用  

Application of Optical Flow in Motion Analysis for Coronary Artery in Angiogram Sequences

作　　者：姜浩[1] 郁道银[1] 孙正[1] 徐智[1] 黄家祥[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室,天津300072

出　　处：《光电子．激光》2004年第9期1128-1131,共4页Journal of Optoelectronics·Laser

基　　金：教育部高等学校博士学科点专项科研基金资助项目(20030056018)

摘　　要：采用光流法,由单面冠状动脉造影图像序列估计冠状动脉血管的二维运动。通过分析冠状动脉血管造影图像序列,计算出相关的血管运动参数,得到对心脏运动的定量估计。分别介绍了梯度光流法和特征光流法2种算法,并对其优缺点进行了比较。为了验证该运动估计方法的准确性,对临床得到的造影图像进行了实验。实验结果表明,算法具有可行性。An optical flow based approach is presented to estimate coronary artery's two-dimensional motion from a sequence of single-plane angiographic images. Coronary angiograms are analyzed to estimate related dynamic parameters for coronary vessels and quantitative assessment of cardiac motion is obtained. The gradient-based approach and feature-based approach are discussed and compared with each other. The performance of this motion estimation method is illustrated with clinical angiographic image sequences and results clearly show that the method is feasible.

关 键 词：冠状动脉造影 血管运动 造影图像 血管造影 临床 心脏 实验 图像序列 光流法 算法 

分 类 号：TN911.73[电子电信—通信与信息系统] TP391[电子电信—信息与通信工程]