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Issue No.12 - December (1978 vol.27)
pp: 1213-1216
S. Wendling , Laboratory of Artificial Intelligence, University of Besancon
This correspondence presents a device for designing unitary transformations based on the Hadamard transform process. The notion of "invariants" within the power spectrum of one-dimensional transformations is developed and the specific case of some widespread transformations is considered. The results are extended to two-dimensional transformations and a character recognition experiment using the invariants thus obtained is presented.
power spectrum, Character recognition, Hadamard?Haar?Fourier transform, metric invariants by translation
S. Wendling, G. Gagneux, G. Stamon, "A Set of Invariants Within the Power Spectrum of Unitary Transformations", IEEE Transactions on Computers, vol.27, no. 12, pp. 1213-1216, December 1978, doi:10.1109/TC.1978.1675030
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