电子学报2001，Vol.29Issue(3)：350-353,4.
利用Zernike矩对心脏超声图进行光流场计算的邻域优化算法
A Local Optimization Algorithm for Computing 2-D Optical-Flow Field
of Heart-Echocardiograph Image Using Zernike Moment
摘要
Abstract
This paper presents a local optimization algorithm for computation of 2-D optical-flow field aiming at the specialty of heart-echocardiograph image.We have analyzed several advantages of Zernike moments such as orthogonality and rotation-invariance,and demonstrate that Zernike moments are superior in representing the local motion invariance in heart-echocardiograph image.Accordingly,we generalize the premise of traditional Optical Flow Computation that intensity is invariant in the sequence to the invariance of each order Zernike moment.In addition,in virtue of the computation of whole contribution of the neighborhood around each pixel,Zernike moment based method can greatly reduce the influence of a singular error at one pixel on the total representative,therefore improves the robustness of the algorithm.关键词
光流场计算/Zernike矩/邻域优化/运动图像序列分析分类
信息技术与安全科学引用本文复制引用
辜嘉,罗立民,舒华忠..利用Zernike矩对心脏超声图进行光流场计算的邻域优化算法[J].电子学报,2001,29(3):350-353,4.
