Enhanced vision system sensitive to infrared radiation
First Claim
1. A vision system, comprisinga detection system configured to detect electromagnetic radiation, the detection system including (i) a first infrared imager configured to produce a first detected image signal corresponding to radiation detected over a first range of wavelengths, (ii) a second infrared imager configured to produce a second detected image signal corresponding to radiation detected over a second range of wavelengths, and (iii) a visible light imager;
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Abstract
An enhanced vision system and method for use with vision systems with an imager sensitive to infrared radiation of less than 2-microns in wavelength, to produce a first image signal. Another imager sensitive to infrared radiation at least 3-microns in wavelength may be used to produce a second image signal. Preferably, the first image signal represents sensed electric light sources, and the second image signal represents sensed background such as terrain, runways, structures, and obstacles. A signal processor combines an image signal representing locally maximum values of the first image signal with the second image signal to create a displayed image.
31 Citations
15 Claims
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1. A vision system, comprising
a detection system configured to detect electromagnetic radiation, the detection system including (i) a first infrared imager configured to produce a first detected image signal corresponding to radiation detected over a first range of wavelengths, (ii) a second infrared imager configured to produce a second detected image signal corresponding to radiation detected over a second range of wavelengths, and (iii) a visible light imager; - and
a signal processor operatively associated with the detection system and adapted to produce a modified image signal including either or both of the first detected image signal and the second detected image signal, depending on a criterion ascertained from image data obtained by the visible light imager. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification