Optical Engineering · 1976 · 88 citations · 0 references
Natural SciencesComputer ScienceComputer VisionDigital ImagingOpticsDigital Image ProcessingDigital Signal ProcessingFourier OpticsImage ProcessingOptical Signal ProcessingSignal ProcessingData ProcessingFourier TransformOptical CorrelationOptical Image ProcessingOptical Information ProcessingOptical Pattern RecognitionScaling TransformationsTransform
The scale invariance of the Mellin transform and its optical synthesis in real-time are discussed. An initial off-line demonstration of an optical Mellin transform is presented. A scale invariant correlation and a combined Fourier-Mellin transform that is both scale and shift invariant are discussed. Applications of these transforms in optical data processing and optical pattern recognition are emphasized.