%0 Journal Article
%T Perspective Invariant Recognition of 2D Shapes<br>二维形状的透视不变性认别
%A Xu Zhengwei
%A Wu Chengke
%A <br>徐正伟
%A 吴成柯
%J 自动化学报
%D 1995
%I 
%X The recognition of 2D shapes is important in computer vision. In order to recognize the 2D shapes, we proposed a set of perspective invariants of a pair of coplanar conics in this paper, we suggest a perspective invariant representation of general planar curve based on ellipse, and give an algorithm using the invariants and the representation to recognize 2D shapes. The effectiveness of the algorithm is demonstrated by the experiments.
%K Recognition of 2D shapes
%K perspectiviy projection invariants
%K perspective invariant representation
%K perspective projection<br>二维形状
%K 透视不变性识别
%K 机器视觉
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=E76622685B64B2AA896A7F777B64EB3A&aid=2B813CCA13756A059C2EA27776D6575F&yid=BBCD5003575B2B5F&vid=659D3B06EBF534A7&iid=E158A972A605785F&sid=6D6BFCF0101BC091&eid=AC2617B68B137D9D&journal_id=0254-4156&journal_name=自动化学报&referenced_num=0&reference_num=5