Spectral imaging method and apparatus

Details Spectral imaging method and apparatus Spectral imaging method and apparatus

1996-04-22

1997-10-14

Porta, David P.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250330, G01J 142

Patent

active

056775326

ABSTRACT:
A fire detection camera and method of detecting fires which are not normally visible to the human eye. An image of the flame area is split into three light beams representing three different spectral ranges. The first beam corresponds to the flame image plus the background scene and is focused onto a first monochrome imaging device. The second beam corresponds to the background scene and is focused onto a second monochrome light imaging device. The third beam corresponds to light in the visible range and is focused onto a color imaging device to depict the visible surroundings. The background image is subtracted from the flame image to isolate the flame, and the isolated flame image is superimposed onto the color scene to depict a composite image that represents the flame in its actual surroundings.

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J.D. Collins et al., "Miniature Hydrogen Fire Camera", I-Net Space Services, Published on the Internet, Sep. 1995.
National Aeronautics and Space Administration, "Dual Use Hydrogen Fire Camera", Feb. 13, 1996.
National Aeronautics and Space Administration, "Low-Cost, Handheld Hydrogen Fire Imager", Dec. 1995.

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