Title :
Optimal focal length calibration system
Author :
Kanatani, Kenichi ; Maruyama, Tamotsu
Author_Institution :
Dept. of Comput. Sci., Gunma Univ., Japan
Abstract :
An optimal grid is designed so that the reliability of the camera focal length calibration using it is theoretically maximized. The analysis is based on a statistical error model of the line fitting in digital images. The reliability of the focal length is quantitatively computed from the reliability of the edges to which lines are fitted. A realistic device is designed by adding many technical improvements, and a prototype model is shown
Keywords :
calibration; camera focal length calibration; digital images; line fitting; reliability; statistical error model; Calibration; Cameras; Computer science; Concurrent computing; Covariance matrix; Eigenvalues and eigenfunctions; Geometry; Pixel; Tiles;
Conference_Titel :
Intelligent Robots and Systems '93, IROS '93. Proceedings of the 1993 IEEE/RSJ International Conference on
Conference_Location :
Yokohama
Print_ISBN :
0-7803-0823-9
DOI :
10.1109/IROS.1993.583882
