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Spectral feature classification and spatial pattern recognitionThis paper introduces a spatial pattern recognition processing concept involving the use of spectral feature classification technology and coherent optical correlation. The concept defines a hybrid image processing system incorporating both digital and optical technology. The hybrid instrument provides simplified pseudopattern images as functions of pixel classification from information embedded within a real-scene image. These pseudoimages become simplified inputs to an optical correlator for use in a subsequent pattern identification decision useful in executing landmark pointing, tracking, or navigating functions. Real-time classification is proposed as a research tool for exploring ways to enhance input signal-to-noise ratio as an aid in improving optical correlation. The approach can be explored with developing technology, including a current NASA Langley Research Center technology plan that involves a series of related Shuttle-borne experiments. A first-planned experiment, Feature Identification and Location Experiment (FILE), is undergoing final ground testing, and is scheduled for flight on the NASA Shuttle (STS2/flight OSTA-1) in 1980. FILE will evaluate a technique for autonomously classifying earth features into the four categories: bare land; water; vegetation; and clouds, snow, or ice.
Document ID
19790065333
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sivertson, W. E., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Wilson, R. G.
(NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1979
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Society of Photo-Optical Instrumentation Engineers, Annual International Technical Symposium and Instrument Display
Location: San Diego, CA
Start Date: August 27, 1979
End Date: August 30, 1979
Sponsors: Society of Photo-Optical Instrumentation Engineers
Accession Number
79A49346
Distribution Limits
Public
Copyright
Other

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