A linear method for determining intrinsic parameters from two parallel line-segments

Authors:
Jianliang Tang;Jie Wang;Wensheng Chen
Affiliations:
College of Mathematics and Computational Science, Shenzhen University, Shenzhen, China;Key Laboratory of Multimedia and Intelligent Software College of Computer Science and Technology, Beijing University of Technology, Beijing, China;College of Mathematics and Computational Science, Shenzhen University, Shenzhen, China
Venue:
ICIC'13 Proceedings of the 9th international conference on Intelligent Computing Theories and Technology
Year:
2013

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Abstract

In this paper, a linear method to determining intrinsic parameters from two parallel line-segments is proposed. Constrains based on the length ratio of line-segments are used to solve the camera calibration problem from images of two parallel line-segments under different conditions. And for each setting, we can get linear solution for intrinsic parameters of a usual camera. Simulated experiments are carried out to verify the theoretical correctness and numerical robustness of our results.