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Proceedings Paper

3D measurement based on vanishing point theorem
Author(s): Shujie Pan; Shouping Dong; Honglian Ma; Hongli Wang
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Paper Abstract

A method of determining 3D position based on vanishing-point theorem in perspective picture was developed and tested. Proposed an iterative method that using fastest descent arithmetic to calculate the non-linear parameter and implemented the non-linear calibration to system. In order to get the accurate position of vanishing-point, a sub-pixel self-adapting recursion arithmetic was presented, that makes the originality numeric image defined in integral pixel position obtain continuous mapping in rational number field. A experiment of determination 3D position with a cub showed, the position precision can effectively improved by using the sub-pixel self-adapt recursion arithmetic in the non-linear calibration method based on vanishing-point, and part of a plaster module of a person's head also been measured with this method and the vivid result of reconstruction shows the measurement can be used in free curved surface.

Paper Details

Date Published: 31 December 2008
PDF: 6 pages
Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71303O (31 December 2008); doi: 10.1117/12.819691
Show Author Affiliations
Shujie Pan, China Univ. of Petroleum (China)
Shouping Dong, China Univ. of Petroleum (China)
Honglian Ma, China Univ. of Petroleum (China)
Hongli Wang, China Univ. of Petroleum (China)

Published in SPIE Proceedings Vol. 7130:
Fourth International Symposium on Precision Mechanical Measurements
Yetai Fei; Kuang-Chao Fan; Rongsheng Lu, Editor(s)

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