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We suggest a new computational theory for position, size, and orientation invariant recognition of planar gray-scale forms in frontoparallel view. The theory employs a spatial-frequency representation which approximates the complex-logarithmic conformally mapped Wigner distribution of a gray-scale image. Our discussion emphasizes the theoretical significance, method of computation, and practical utility of this powerful new representation for image pattern recognition.
Pattern Analysis and Machine Intelligence, IEEE Transactions on (Volume:PAMI-6 , Issue: 3 )
Date of Publication: May 1984