A Method of Determining the Pose of Planar Target in Vision Detection System

Abstract:

Planar target is a location reference that is widely used in vision detection system. Based on monocular vision and circular markers on the planar target, a new method of determining the pose of target spatial plane is proposed. Since CCD image of a circle is an ellipse ,determining the pose of spatial plane may be transformed into determining the pose of ellipse. Ellipse curve equation of circle’s image is deduced and the independent parameters of ellipse are obtained, the relationship between spatial plane and ellipse parameters is established, thus the pose of spatial plane can be determined. By calculating the relative displacement with the standard plane that its depth information is known, the depth information from the center of ellipse image to the camera coordinate system is obtained. The algorithm is simple and fast, and it can be widely used in monocular vision detection.

• Periodical: Advanced Materials Research (Volume 659)
• Pages: 156-161
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.659.156
• Online since: January 2013
• Authors: Sheng Nan Zhang, Bo Shi Wang, Wei Qi Yuan
• Keywords: Monocular Vision, Planar Target, Plane Position, Vision Detection

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DOI: 10.1109/70.163786

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