一种基于二维信息匹配的ASM定位算法  

ASM Location Algorithm Based on Two-dimensional Information Matching

作　　者：邵黄芳[1] 毛剑飞[1] 田青[1] 

机构地区：[1]浙江工业大学计算机学院,杭州310023

出　　处：《系统仿真学报》2012年第7期1450-1454,共5页Journal of System Simulation

基　　金：浙江省科技厅面上社会发展项目(2009C33043);浙江省自然科学基金项目(Y1090335)

摘　　要：主动形状模型ASM(Active Shape Models)目前在目标对象的定位中得到了广泛的应用。为进一步提高ASM的目标定位精度,在传统ASM方法的基础上,提出了一种基于二维信息匹配的ASM目标定位改进算法。该算法采用以轮廓点为中心的近似圆盘区域的二维灰度信息代替原算法的一维法线灰度信息进行目标轮廓匹配。实验表明与传统ASM算法相比,改进算法的目标定位精度有显著提高。Active Shape Models （ASM） algorithm has been being widely used in objects location. In order to improve ASM accuracy in target location, an improved ASM algorithm based traditional one was presented based on two-dimensional information. In the method, two-dimensional gray information in the circle domain with the marker being the center, instead of one-dimensional information in normal, was used to match the object figure. Finally, the experiment indicates that matching precision of the improved ASM performs is higher than the original one.

关 键 词：ASM方法 仿射变换 主成分分析 配准变换 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]