Abstract
This paper shows a camera and projector calibration scheme based on the light section method using spheres for multiple rangefinders. The proposed calibration fits the scanning data based on the light-section method to the shape of each sphere. The procedure of the proposed calibration consists of two steps in camera and projector calibration. First, the locations of spheres are estimated by the projected spheres’ images in an image sensor. Second, the camera and projector parameters are obtained using the locations of spheres. We propose an objective function with both of the locations and the shapes of spheres. The estimated location of spheres only using a camera has an error. Therefore we calibrate all parameters changing the ratio of the locations and shapes in the function. And also, we extend the calibration method to the multiple-rangefinder system. The range accuracy is similar to the other non-self calibration method. We calibrate the camera and projector parameter only using spheres without known position, which contributes low cost calibration.
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Yachide, Y., Ikeda, M., Asada, K. (2008). Multiple-Rangefinders Calibration Based on Light-Section Method Using Spheres. In: Mukhopadhyay, S.C., Gupta, G.S. (eds) Smart Sensors and Sensing Technology. Lecture Notes Electrical Engineering, vol 20. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-79590-2_19
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DOI: https://doi.org/10.1007/978-3-540-79590-2_19
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