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Identification of Three-Dimensional Objects Using Fourier Descriptors of the Boundary Curve

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2 Author(s)
Charles W. Richard ; Department of Mathematics, Air Force Institute of Technology, Wright-Patterson AFB, Ohio. ; Hooshang Hemami

The feasibility of a method for the identification of a three-dimensional object from information contained in the boundary of its silhouettes is demonstrated. A silhouette is characterized by parametric representation of its boundary curve in the complex plane. After normalization and transformation, a set of Fourier descriptors is derived for every silhouette. A minimum distance classifier uses the descriptors to identify the three-dimensional object and to estimate its position and attitude with respect to a known reference coordinate system. The method was tested for identification of four aircraft representing complex and nonconvex objects. Simulation results, quantitative and statistical, are presented.

Published in:

IEEE Transactions on Systems, Man, and Cybernetics  (Volume:SMC-4 ,  Issue: 4 )