Patent ID: 7634157
Filing Date: 2009-12-15
Classification: G01J,G01N,H04N

Abstract:
1. An article comprising a computer-readable storage medium embodying information indicative of instructions that when performed by one or more computers result in operations comprising: positioning a first filter in the optical path of an infrared camera, the first filter configured to pass a narrow wavelength band including a first wavelength; acquiring first subframe image data associated with the first wavelength at a detector using a first exposure; acquiring second subframe image data associated with the first wavelength at the detector using a second exposure; generating first wavelength image data based on at least some of the first subframe image data and the second subframe image data; positioning a second filter in the optical path of the infrared camera, the second filter configured to pass a narrow wavelength band including a second different wavelength; acquiring image data associated with the second wavelength at the detector; generating second wavelength image data based on the image data associated with the second wavelength; and comparing the first wavelength image data and the second wavelength image data to reference spectroscopic data.