Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/70352
Title: Focal length self-calibration based on degenerated kruppa's equations: method and evaluation
Authors: Lao, W.
Cheng, Z.
Kam, A.H.
Tan, T.
Kassim, A. 
Issue Date: 2004
Source: Lao, W.,Cheng, Z.,Kam, A.H.,Tan, T.,Kassim, A. (2004). Focal length self-calibration based on degenerated kruppa's equations: method and evaluation. Proceedings - International Conference on Image Processing, ICIP 2 : 3391-3394. ScholarBank@NUS Repository.
Abstract: In this paper, a linear self-calibration approach for camera focal length estimation is proposed. No priori information of camera motion is needed for the method. The unknown focal length of camera is conveniently obtained in closed form from degenerated Kruppa's equations. These degenerated equations (one quadratic and two linear) provide the essential constraints on calibration of camera intrinsic parameters. Real images of indoor and outdoor generic scenes and 3D metric reconstruction are used to analyze the accuracy of the estimated focal length. Experiments results show that the method is both robust and efficient. ©2004 IEEE.
Source Title: Proceedings - International Conference on Image Processing, ICIP
URI: http://scholarbank.nus.edu.sg/handle/10635/70352
ISSN: 15224880
Appears in Collections:Staff Publications

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