Title :
A Set of Invariants Within the Power Spectrum of Unitary Transformations
Author :
Wendling, S. ; Gagneux, G. ; Stamon, G.
Author_Institution :
Laboratory of Artificial Intelligence, University of Besancon
Abstract :
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.
Keywords :
Character recognition; Hadamard–Haar–Fourier transform; metric invariants by translation; power spectrum; Artificial intelligence; Character recognition; Energy conservation; Error correction; Error correction codes; Power generation; Character recognition; Hadamard–Haar–Fourier transform; metric invariants by translation; power spectrum;
Journal_Title :
Computers, IEEE Transactions on
DOI :
10.1109/TC.1978.1675030
