The Mitre Corporation

Marin Halper

Kevin Robert Gemp

Christopher W Miller

Ariel Schlamm

Brent Bartlett

Shannon Jordan

William Basener

A system for generating reflectance values for a target that includes a plurality of electromagnetic radiation sources for irradiating the target, an imager for generating a plurality of digital representations of the target that includes an array of filter elements for filtering electromagnetic radiation reflected by the target through an array of filter elements, and a detector for detecting the filtered electromagnetic radiation at an array of detection elements. The system includes processors for determining a set of reflectance values for a portion of the target based on a first digital representation of the target generated in response to irradiation of the target with radiation of a first wavelength band and a second digital representation of the target generated in response to irradiation of the target with radiation of a second wavelength band.

Active hyperspectral imaging system

Systems, methods and computer program products, for identification of materials based on hyperspectral imagery, are disclosed. An example system comprises one or more processors, a memory, a library of spectral signatures, a receiver, a model generator, and a material identifier. The receiver module is configured to receive a first spectral signature corresponding to a region of interest contained in the hyperspectral image. The model generator is configured to create a model search space including one or more model signatures based on the spectral signatures in the library, wherein each of the one or more model signatures approximate the first spectral signature. The material identifier is a material identifier configured to calculate a probability associated with a presence or absence of a material within the first spectral signature, based on the first spectral signature and the model search space and determine the presence or absence of the material in the region of interest based on the probability.

Probabilistic identification of solid materials in hyperspectral imagery

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Washington, DC, United States of America

Marin Halper