摘要
在计算机视觉中，二维形状的识别有着十分重要的意义．为了实现二维形状的透视投影不变性识别，本文推导出了一种共面二次曲线对的透视投影不变量，提出了一种基于椭圆的平面曲线的透视不变性表示方法，并且给出了用该不变量和不变性表示方法实现二维形状识别的算法．实验结果证实了该算法的有效性．
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.
出处
《自动化学报》
EI
CSCD
北大核心
1995年第4期431-439,共9页
Acta Automatica Sinica
基金
国家自然科学基金
国防预研基金
关键词
二维形状
透视不变性识别
机器视觉
Recognition of 2D shapes
perspectiviy projection invariants
perspective invariant representation
perspective projection.
