Hyperspectral imaging system and method of using the same
AssigneeThe Procter & Gamble Company
InventorsLucian DUMITRESCU, Karen Kay KALLA, Dean Arthur ZIMMERMAN, Jaroslaw Pawel SACHA
Life of this patent
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Abstract
A hyperspectral imaging system that includes an image capture device, an illumination component, a tunable filter, and an infrared cut-off filter. The hyperspectral system can capture a spectral image of a target object such as a clinical test subject across a spectral range of at least 450 nm to 700 nm at a spectral resolution of at least 50 nm. The infrared cut-off filter is positioned between the target object and the tunable filter to reduce leak-through and improve the performance of the hyperspectral imaging system.
Claims19
A hyperspectral imaging system, comprising:
- a) an image capture device positioned to capture an image of a target object;
- b) an illumination component configured to illuminate the target object with a sufficient amount of light for the hyperspectral imaging system to generate a hyperspectral image of the target object;
- c) a tunable filter;
- and
- d) an infrared cut-off filter positioned between the target object and the tunable filter.
A method of generating a hyperspectral image, comprising:
- a) illuminating the target portion of skin with an illumination component;
- b) filtering light reflected from the target portion of skin with an infrared cut-off filter, wherein the infrared cut-off filter attenuates light intensity at wavelengths of between 700 nm and 730 nm;
- c) filtering the filtered light from (b) with a liquid-crystal tunable filter that is tunable to at least 10 different spectral bands between 400 nm and 730 nm;
- d) capturing the light from (c) with an image capture device;
- e) generating a spectral image of the target portion of skin using the captured light from (d);
- f) repeating steps (a) to (e) to generate 10 or more spectral images at different wavelengths;
- and
- g) displaying on a display device the 10 or more spectral images as a hyperspectral image.
Dependencies are inferred from the claim text.