Abstract
A technique for a zoom lens camera is presented that enable to update continuously camera intrinsic parameters while zooming. This is based on the fact that the spatial angle subtended by the optical center and the same two 3-D points in the standard camera coordinate system remains invariant for subsequent image frames on which the two 3-D points are located. The new focal length value is obtained as the solution of the quadratic equation we derive from the angular invariance. We give an error estimate to show how the uncertainty in the localization of corresponding points in the image frames may affect the accuracy of the updated value of the focal length. We report the results of two experiments when sequences of magnified images were taken by fixed and by rotating camera.
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References
M. Li and J.M. Lavest: Some Aspects of Zoom Lens Camera Calibration. IEEE Transactions on Patt. Anal. And Mach. Intell. Vol.18,No.11, November (1996) 1105–1110.
J.L. Crowley, P. Bobet and C. Schmid: Maintaining Stereo Calibration by Tracking Image Points. CVPR, (1993) 483–488.
R. Enciso, T, Vieville.and A. Zisserman: An affine solution to Euclidean calibration for a zoom lens. RobotVis Project INRIA BP 93, FR-06902, Sophia-Antipolis, France.
P. Sturm: Self-calibration of a moving zoom-lens camera by precalibration. Image and Vision Computing. Vol.15, (1997) 583–589.
M. Pollefeys, R. Koch and L. Van Gool: Self-Calibration and Metric Reconstruction in spite of Varying and Unknown Internal Camera Parameters. Proc. ICCV, (1998)
R. Enciso and T. Vieville: Self-calibration from four views with possibly varying intrinsic parameters. Image and Vision Computing. Vol.15, (1997) 293–305.
A. Heyden and K. Aström: Euclidian Reconstraction from Image Sequences with Varying and Unknown Focal Length and Principle Point. Proc. CVPR'97 (1997).
S. J. Maybank and O. D. Faugeras: A Theory of Self-Calibration of a Moving Camera. International Journal of Computer Vision. 8:2, (1992) 123–151.
O. D. Faugeras and G. Toscani: Camera calibration for 3D computer vision. Proc. 2 nd ECCV. Santa Margherita, May (1992) 563–578.
O. Faugeras: Three-Dimensional Computer Vision. A Geometric Viewpoint. MIT Press, Cambridge, MA, (1993) 55–65.
H. Kager (ed.): ORIENT, a universal photogrammetric adjustment system. Reference Manual. Inst. for Photogrammetry and Remote Sensing, Technical University Vienna, (1995)
M. Kolesnik: Using Angles for Internal Camera Calibration. GMD Report #55, Sankt Augustin, Germany (1999).
R.G. Willson and S.A. Shafer. What is the Center of the Image? Proc. CVPR'93. June 15–17, New York (1993)
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© 1999 Springer-Verlag Berlin Heidelberg
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Kolesnik, M. (1999). Calibration Update Technique for a Zoom Lens. In: Solina, F., Leonardis, A. (eds) Computer Analysis of Images and Patterns. CAIP 1999. Lecture Notes in Computer Science, vol 1689. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48375-6_53
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DOI: https://doi.org/10.1007/3-540-48375-6_53
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