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Camera calibration with a motorized zoom lens

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4 Author(s)
Yong-Sheng Chen ; Inst. of Inf. Sci., Acad. Sinica, Taipei, Taiwan ; Sheng-Wen Shih ; Yi-Ping Hung ; Chiou-Shann Fuh

This paper presents a simple and efficient method of calibrating the intrinsic camera parameters for all the lens settings of a motorized zoom lens. We fix the aperture setting and perform the camera calibration, adaptively, over the ranges of the room and focus settings. Bilinear interpolation is used to provide the values of the intrinsic camera parameters for those lens settings where no observations are taken. Our experiments show that the proposed method can provide accurate intrinsic camera parameters for all the lens settings, even though camera calibration is performed only for a small number of sampled lens settings. A calibration object suitable for zoom lens calibration is also presented

Published in:

Pattern Recognition, 2000. Proceedings. 15th International Conference on  (Volume:4 )

Date of Conference:

2000

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