Parallel Optical Pyramidal Image Processing

G. Eichmann; A. Kostrzewski; B. Ha; D. H. Kim; Y. Li

doi:10.1117/12.947053

18 July 1988 Parallel Optical Pyramidal Image Processing

G. Eichmann, A. Kostrzewski, B. Ha, D. H. Kim, Y. Li

Proceedings Volume 0939, Hybrid Image and Signal Processing; (1988) https://doi.org/10.1117/12.947053
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

Pyramidal processing is a form of multiresolution image analysis in which a primary image is decomposed into a set of different resolution image copies. Pyramidal processing aims to extract and interpret significant features of an image appearing at different resolutions. Digital pyramidal image processing, because of the large number of convolution type operations, is time-consuming. On the other hand, optical pyramidal processors, because of their ease in performing convolution operation, are preferable in real-time image understanding applications. Two methods of optical pyramidal image generation, a Fourier spectrum filtering based, and a local averaging using 2D lens array, are presented. Preliminary experimental results for optical Gaussian, Laplacian and other fivadtree pyramidal image processing are shown. Experimental results, using commercial lifiuid crystal TVs, for a real-time pyramid image generation are presented.

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G. Eichmann, A. Kostrzewski, B. Ha, D. H. Kim, and Y. Li "Parallel Optical Pyramidal Image Processing", Proc. SPIE 0939, Hybrid Image and Signal Processing, (18 July 1988); https://doi.org/10.1117/12.947053

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KEYWORDS

Image processing

Gemini Planet Imager

Image filtering

Linear filtering

Optical filters

Convolution

Fourier transforms

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