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大范围视觉坐标测量中像机参数的快速获取方法
Alternative TitleMethod for quickly acquiring camera parameters in wide-range vision coordinate measurement
宫俊玲; 王玉良
Department光电信息技术研究室
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002
Country中国
Subtype发明
Status未缴年费
Abstract本发明涉及一种大范围视觉坐标测量中像机参数的快速获取方法,包括以下步骤:以特定参照物建立世界坐标系;将两个光学靶标作为两个已知的坐标点;通过两个CCD摄像机分别采集两个光学靶标图片数据,获取相应的像面坐标;通过全站仪或GPS测量两个光学靶标的位置,即两光学靶标的世界坐标;通过全站仪或GPS测量两个CCD摄像机的平移矢量;将两个光学靶标的世界坐标、两个光学靶标的像面坐标以及两个CCD摄像机的平移矢量代入测量方程进行解算,得到两个CCD摄像机的焦距及光轴水平偏角。本发明方法速度快、可操作性强、实用和算法性能分析容易,只需放置两个光学靶,便可完成像机参数的一次性线性求解;还具有精度较高、适用于远距离等特点。
Other Abstract

The invention relates to a method for quickly acquiring camera parameters in the wide-range vision coordinate measurement, comprising the following steps of: establishing a world coordinate system according to a specific reference substance taking two optical targets as two known coordinate points respectively acquiring picture data of the two optical targets and corresponding image coordinatesthrough two CCD (Charge Coupled Device) cameras measuring the positions of the two optical targets through an electronic total station or a GPS (Global Positioning System), that is to say world coordinates of the two optical targets measuring the translation vectors of the two CCD cameras through the electronic total station or the GPS and substituting the world coordinates of the two optical targets, the image coordinates of the two optical targets and the translation vectors of the two CCD cameras into a measurement equation and resolving to obtain the focus lengths of the two CCD cameras and the horizontal declination angle of an optical axis. The method disclosed by the method has the characteristics of high speed, strong operability, easily-analyzed practical and algorithm performances, higher precision, suitability for long distance and the like and the camera parameters can be solved linearly once by only placing the two optical targets.

PCT Attributes
Application Date2009-12-11
2011-06-15
Date Available2012-07-25
Application NumberCN200910220676.0
Open (Notice) NumberCN102095368A
Language中文
Contribution Rank1
Document Type专利
Identifierhttp://ir.sia.cn/handle/173321/13505
Collection光电信息技术研究室
Affiliation中国科学院沈阳自动化研究所
Recommended Citation
GB/T 7714
宫俊玲,王玉良. 大范围视觉坐标测量中像机参数的快速获取方法[P]. 2011-06-15.
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