活动触角模板在目标定位中的应用

在白内障超声波乳化手术中，只靠人眼凭经验判断管头处晶体核密度是比较困难的，
为了适当的降低这一问题的难度，并同时为了给医生提供一些辅助性帮助，本文提出一种新颖的自动实时跟踪超声波管头的算法，算法采取由粗到细逐步精确定位的思想：首先以行列结合的扫描方式定位目标体大体的活动范围，然后采用一种新颖的基于活动触角模板并结合改进的带有方向边缘信息的启发式搜索的方法，快速准确的定位出管头的位置。试验结果表明，活动触角模板结合改进的启发式搜索的这一目标定位新方法可以充分满足实时性和准确性两方面的要求。
关键词：扫描；触角模板；启发式搜索
The Mobile Antenna Template In The Goal Location XU Zhengguang 1, Hou Qiang2 【Abstract】In the Cataract ultrasonic wave emulsification surgery ,Due to the fact that it is difficult to judge the crystal nucleus’s density only by eyes , this paper put forward a kind of arithmetic of automatic real-time tracking the top of the ultrasonic tube in the operation. The idea of positioning exactly from wide to narrow gradually is adopted in the article. After the general movement scope of the target body is positioned by scan which is the row and line combined style, a kind of new method which can fix the position of the tube’s top quickly and exactly is adopted. The new method is a combination with improved heuristic search with direction edge information and the active antenna templet. The test result indicate that the new location method of heuristic search jointed with the active antenna templet can satisfy the requirement of real-time and veracity.
【Key words】scan; antenna Template; heuristic search