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Proceedings Paper

Depth recovery through active control of focal length
Author(s): Bijan G. Mobasseri; Siva Doraiswamy
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Paper Abstract

In this work, we have proposed the use of flow not induced by motion but by active manipulation of the lens focal length. The sequence of images thus obtained are to a great extent equivalent to those generated by camera translation with several distinct advantages: (1) the platform undergoes no perturbation while capturing the image sequences, (2) focus of expansion (FOE) is theoretically constrained to be at the center of the image or close proximity for camera imperfection, and (3) the flow is radial and as a result the correspondence problem, so difficult elsewhere, reduces to a 1-D search problem.

Paper Details

Date Published: 1 February 1994
PDF: 10 pages
Proc. SPIE 2058, Mobile Robots VIII, (1 February 1994); doi: 10.1117/12.167485
Show Author Affiliations
Bijan G. Mobasseri, Villanova Univ. (United States)
Siva Doraiswamy, Villanova Univ. (United States)

Published in SPIE Proceedings Vol. 2058:
Mobile Robots VIII
William J. Wolfe; Wendell H. Chun, Editor(s)

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