Recognition of Planar Polygons in Space Based on Perspective Projection Invariances

Xu Zhengwei; Wu Chengke

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Recognition of Planar Polygons in Space Based on Perspective Projection Invariances

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- Recognition of Planar Polygons in Space Based on Perspective Projection Invariances
- Acta Electronica Sinica Issue 7, Pages: 8-15(1993)
- 作者机构：
  
  1. 西安电子科技大学信息工程系
  2. 西安电子科技大学信息工程系西安 710071
- 作者简介：
- 基金信息：
- DOI：
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- Published：1993
- 稿件说明：
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[1]徐正伟,吴成柯.基于透视投影不变性的空间平面多边形识别[J].电子学报,1993,{4}(07):8-15.

Xu Zhengwei, Wu Chengke. Recognition of Planar Polygons in Space Based on Perspective Projection Invariances[J]. Acta Electronica Sinica, 1993, (7): 8-15.
[1]徐正伟,吴成柯.基于透视投影不变性的空间平面多边形识别[J].电子学报,1993,{4}(07):8-15. DOI：

Xu Zhengwei, Wu Chengke. Recognition of Planar Polygons in Space Based on Perspective Projection Invariances[J]. Acta Electronica Sinica, 1993, (7): 8-15. DOI：

摘要

在计算机视觉中

平面多边形的识别有着十分重要的意义。本文导出了一种五条直线间的透视投影不变量

提出了透视等价多边形的概念

并且用这种不变量和透视等价多边形的性质实现了空间平面多边形的描述和识别。这种方法的识别结果不但与摄像机的视点位置无关

而且具有比较好的抗噪声性能。实验结果证明了这种方法的有效性。

Abstract

The recognition of planar polygons has many important applications in computer vision.We derive a group of perspective projection invariants of five general coplane lines and present the concept of perspective equivalent planar polygons （PEPP） in this paper.The invariants and the properties of PEPP may be used to recognize planar polygons.The recognition results are independent of the view points of camera

and more stable in the presence of noises than that of other methods.The experiments have proved the effectiveness of the invariants.

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