Fast Focal Length Solution in Partial Panoramic Image Stitching

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Permanent URL	http://hdl.lib.byu.edu/1877/2615
Title	Fast Focal Length Solution in Partial Panoramic Image Stitching
BYU Creator	Barrett, William A.
Creator	Duffin, Kirk L.
Keywords	focal length estimation; image stitching; partial panoramas; zoom lenses
Description/Abstract	Accurate estimation of effective camera focal length is crucial to the success of panoramic image stitching. Fast techniques for estimating the focal length exist, but are dependent upon a close initial approximation or the existence of a full circle panoramic image sequence. Numerical solutions of the focal length demonstrate strong coupling between the focal length and the angles used to position each component image about the common spherical center. This paper demonstrates that parameterizing panoramic image positions using spherical arc length instead of angles effectively decouples the focal length Ji.om the image position. This new parameterization does not require an initial focal length estimate for quick convergence, nor does it require a fill circle panorama in order to rejine the focal length. Experiments with synthetic and real image sets demonstrate the robustness of the method and a speedup of 5 to 20 times over angle based positioning.
Source	K. Duffin and W. A. Barrett: "Fast Focal Length Solution in Partial Panoramic Image Stitching" Computer Vision and Pattern Recognition 2001, Vol. 2, P. 690-695, December, 2001.;
Publisher	IEEE
Date Original	2001-12
Date Digital	2010-10-26
Language	English eng en
Publication Type	Articles
Type	Text
Format	application/pdf
Owning Institution	Brigham Young University
BYU College	College of Physical and Mathematical Sciences
BYU Department	Computer Science
Copyright Status	(c) 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.;
Copyright Use Information	http://www.lib.byu.edu/generic_copyright.html

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Fast Focal Length Solution in Partial Panoramic Image Stitching

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