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Proceedings Paper

Optic flow modeling under shifting center of zoom
Author(s): Bijan G. Mobasseri; Siva Doraiswamy
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Paper Abstract

It has been demonstrated recently that images obtained under varying focal lengths contain information on the 3D structure of the scene. This depth-from-zoom approach relies on the knowledge of `center of zoom'. Under zoom, image flow expands radially outward from the image center. In real lenses, however, this center is itself moving on a trajectory determined by the zoom action as well as lens manufacture. Therefore, optic flow vectors will follow an arbitrary curvilinear path in the image plane. In this paper we develop a general model for the determination of image flow given a corresponding locus for the center of zoom.

Paper Details

Date Published: 9 January 1995
PDF: 6 pages
Proc. SPIE 2352, Mobile Robots IX, (9 January 1995); doi: 10.1117/12.198982
Show Author Affiliations
Bijan G. Mobasseri, Villanova Univ. (United States)
Siva Doraiswamy, Villanova Univ. (United States)


Published in SPIE Proceedings Vol. 2352:
Mobile Robots IX
William J. Wolfe; Wendell H. Chun, Editor(s)

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