Object Recognition by Alignment Using Invariant Projections of Planar Surfaces

Authors:
Kenji Nagao;Eric Grimson
Affiliations:
-;-
Venue:
Object Recognition by Alignment Using Invariant Projections of Planar Surfaces
Year:
1994

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Abstract

In order to recognize an object in an image, we must determine the best transformation from object model to the image. In this paper, we show that for features from coplanar surfaces which undergo linear transformations in space, there exist projections invariant to the surface motions up to rotations in the image field. To use this property, we propose a new alignment approach to object recognition based on centroid alignment of corresponding feature groups. This method uses only a single pair of 2D model and data. Experimental results show the robustness of the proposed method against perturbations of feature positions.