Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/68850
Title: A linear self-calibration approach for camera focal length estimation
Authors: Cheng, Z.
Lao, W.
Kam, A.H.
Kassim, A. 
Issue Date: 2004
Source: Cheng, Z.,Lao, W.,Kam, A.H.,Kassim, A. (2004). A linear self-calibration approach for camera focal length estimation. 2004 8th International Conference on Control, Automation, Robotics and Vision (ICARCV) 1 : 717-722. ScholarBank@NUS Repository.
Abstract: This paper comes up with a linear self-calibration approach for camera focal length estimation. Compared with other linear techniques, the advantage of this method is that no priori information of motion is needed. From the degenerated equations (one quadratic and two linear), the essential constraints are generated on calibration of camera intrinsic parameters. Thus the focal length of camera is conveniently obtained in closed form on the reliable assumption that only the focal length is unknown but constant, and the skew factor is zero. Synthetic object/image, real images of indoor and outdoor generic scenes and 3D model reconstruction are involved in our experiments to analyze the accuracy of the estimated focal length. The experimental results indicate that our proposed method is both robust and efficient. © 2004 IEEE.
Source Title: 2004 8th International Conference on Control, Automation, Robotics and Vision (ICARCV)
URI: http://scholarbank.nus.edu.sg/handle/10635/68850
ISBN: 0780386531
Appears in Collections:Staff Publications

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