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Algebraic Functions For Recognition

Author(s)
Shashua, Ammon
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Abstract
In the general case, a trilinear relationship between three perspective views is shown to exist. The trilinearity result is shown to be of much practical use in visual recognition by alignment --- yielding a direct method that cuts through the computations of camera transformation, scene structure and epipolar geometry. The proof of the central result may be of further interest as it demonstrates certain regularities across homographies of the plane and introduces new view invariants. Experiments on simulated and real image data were conducted, including a comparative analysis with epipolar intersection and the linear combination methods, with results indicating a greater degree of robustness in practice and a higher level of performance in re-projection tasks.
Date issued
1994-01-01
URI
http://hdl.handle.net/1721.1/6619
Other identifiers
AIM-1452
Series/Report no.
AIM-1452

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  • AI Memos (1959 - 2004)

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