Multispectral imaging and analysis system

Patent

Multispectral imaging and analysis system

- 05 Mar 1976

44

TL;DR: In this paper, a multispectral imaging and analysis system incorporating the use of charge coupled devices or linear arrays of detectors and which is designed to permit on-board analysis of data in real time is disclosed.

Abstract: A multispectral imaging and analysis system incorporating the use of charge coupled devices or linear arrays of detectors and which is designed to permit on-board analysis of data in real time is disclosed. An imaging system including several arrays of charge coupled devices or linear detector arrays are used to obtain simultaneously spectral reflectance data of different wavelengths for a target area. A plurality of filters each accommodating a particular bandwidth are individually associated with each array. Data from the arrays are read out in parallel and applied to a computer or micro-processor for processing. The micro-processor serves to analyze the data in real time and as may be possible in accordance with hard-wired algorithms. The data are then displayed as an image on an appropriate display unit and also recorded for further use. The display system may be operationally connected to receive a terrain image such that the target area and the analyzed spectral reflectance data are superimposed and simultaneously displayed.

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Citations

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References

Patent

Dark current correction circuit for photosensing devices

Joseph S Lord

- 04 Sep 1970

TL;DR: In this paper, the output of a flicker-type photosensing device is applied to a current-to-voltage mode amplifier including a special dark current correction loop, which is connected between its input and output terminals with a loop including a resistor, a grounded capacitor, a gating arrangement adapted to close the loop only during those periods when no light beam was applied to the photosensor and a second resistor for limiting the capacitor charging rate.

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54

Patent

Electro-optical detector array and spectrum analyzer system

Joseph Alfred LaMontagne

- 25 Mar 1975

TL;DR: In this article, an electro-optical detector array and spectrum analyzer system consisting of a novel detector array containing a plurality of photodetectors, each covered by a different narrow band optical filter, is presented.

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45

Patent

Multispectral imaging system

Andrew E Potter

- 12 May 1971

TL;DR: In this article, a system is described for producing multiple images of a scene where the image is viewed from a single OPTICAL system and converted to separate displays at different light speeds.

...read moreread less

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