一种平面物体射影不变性识别方法  

Method for invariant recognition of planar objects

作　　者：姚扬中[1] 冯象初[1] 

机构地区：[1]西安电子科技大学理学院数学系,西安710071

出　　处：《计算机工程与应用》2007年第17期77-78,205,共3页Computer Engineering and Applications

摘　　要：提出一种基于方向可变滤波器的平面物体射影不变性识别方法。该方法首先利用方向可变滤波器检测出平面物体的边缘方向特征,从单幅图像中提取平面物体在射影变化下的不变特征,建立经典框架,然后用填充经典框架图像的矩识别物体。该方法是图像局部识别方法,允许景物中有部分的遮挡物存在。A new kind of method for recognition of planar object is presented based on steerable filters.The proposed method consists of two part： Firstly,with the help of steerable filters,we detect the orientations of the planar object edges,extract some geometry characteristics invariant under the projective transformation,construct the canonical frame.And then,we recognize planar objects by moments of the filled canonical frames.This method is local method,and can be appliced to objects with some partial occlusion.

关 键 词：方向可变滤波器 射影变换 经典框架 矩 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]