歪み補正に基づくカメラ校正法の精度評価のための基礎実験

概要

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We are aiming to develop an inexpensive high-performance 3D measurement system using a camera. For this purpose, camera calibration is crucial because it determines the precise position and orientation of the camera in the wrork coordinate. In the previous experiment, our calibration technique including distortion correction proved an excellent performance but only in specific equipment. However, for some applications calibration must be easily and flexibility repeated for various situations. Fortunately our technique looks suitable for this, since the camera should perform in a manner similar to an ideal pin-hole camera once it obtains the information of the distortion to be corrected. In this paper, in order to verify the usefulness for the above requirement, we propose a method for assessing the accuracy of calibration which is based on inverse transformation from an image to the real world. The experiment shows the utility of the method.
一般社団法人日本機械学会の論文
1996-06-25