Critical Motion Sequences for the Self-Calibration of Cameras and Stereo Systems with Variable Focal Length

Abstract : We consider the self-calibration problem for a moving camera whose intrinsic parameters are known, except the focal length, which may vary freely across different views. The conditions under which the determination of the focal length's values for an image sequence is not possible, are derived. These depend only on the camera's motions. We give a complete catalogue of the so-called critical motion sequences. This is then used to derive the critical motion sequences for stereo systems with variable focal lengths.
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Communication dans un congrès
Tony Pridmore and Dave Elliman. The 10th British Machine Vision Conference (BMVC '99), Sep 1999, Nottingham, United Kingdom. The British Machine Vision Association (BMVA), pp.63-72, 1999, 〈http://www.bmva.org/bmvc/1999/papers/07.pdf〉
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Peter Sturm. Critical Motion Sequences for the Self-Calibration of Cameras and Stereo Systems with Variable Focal Length. Tony Pridmore and Dave Elliman. The 10th British Machine Vision Conference (BMVC '99), Sep 1999, Nottingham, United Kingdom. The British Machine Vision Association (BMVA), pp.63-72, 1999, 〈http://www.bmva.org/bmvc/1999/papers/07.pdf〉. 〈inria-00525676〉

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