Number | Name | Date | Kind |
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3776616 | Donklias | Dec 1983 | |
4037965 | Weiss | Jul 1977 |
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Casasent et al., "Hybrid Processor to Compute Invariant Moments for Patternecognition", Optics Letters, vol. 5, No. 9, Sep. 1980, pp. 395 to 397. |
L. J. Cutrona et al., "Optical Data Processing and Filtering Systems", IRE Transactions on Information Theory (Jun. 1960), pp. 386-400. |