Accession Number : ADD016153
Title : Method and Device for Improved IR Detection with Compensations for Individual Detector Response.
Descriptive Note : Patent, Filed 21 Apr 92, patented 4 Jan 94,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Hepfer, Kenneth C ; Horman, S R ; Horsch, Bob
Report Date : 04 Jan 1994
Pagination or Media Count : 8
Abstract : An advanced infrared (IR) Sensor based on the present invention would add the following two elements to a basic staring IR sensor using a 2 dimensional array of detector elements to significantly enhance the detection sensitivity of the device. The added features are: (1) Additional optics or modification to the normal optics to scan the image over a small fraction of the array dimensions so that each point in the image is sampled by a number of different detector elements, and (2) signal processing to combine the multiple samples for each image point so as to exclude the effects of 'dead', .'weak' or excessively noisy detector elements and average out the element to element sensitivity variations and calibration/correction imperfections of the 'normal' elements.
Descriptors : *INFRARED DETECTORS, *PATENTS, *PHOTODETECTORS, ARRAYS, CALIBRATION, DETECTORS, IMAGES, INVENTIONS, MODIFICATION, OPTICS, SENSITIVITY, SIGNAL PROCESSING, VARIATIONS, OPTICAL IMAGES, INFRARED SCANNING, INFRARED RADIATION, NIGHT VISION DEVICES, INFRARED TRACKING, INFRARED SURVEILLANCE, IMAGE PROCESSING
Subject Categories : Infrared Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE