Patent ID: 6366681
Filing Date: 2002-04-02
Classification: G06K,G06T

Abstract:
A method for generating a chlorophyll-based health map for a geographic area comprising the steps of:obtaining a multi-spectral image data set for said geographical area, said multi-spectral image data set including at least one spectra that responds to chlorophyll and at least two spectra that respond to background data; removing said background data from said multi-spectral image data set to create a chlorophyll absorption data set; determining an amount of chlorophyll in said geographic area represented by said chlorophyll absorption data set; and said obtaining step comprising the steps of; obtaining a digital image of the blue spectral band for said geographic area that is comprised of a set of pixels wherein each pixel represents the reflectance value for said blue spectral band; obtaining a digital image of the green spectral band for said geographic area that is comprised of a set of pixels wherein each pixel represents the reflectance value for said green spectral band; obtaining a digital image of the red spectral band for said geographic area that is comprised of a set of pixels wherein each pixel represents the reflectance value for said red spectral band; obtaining a digital image of the near infrared spectral band for said geographic area that is comprised of a set of pixels wherein each pixel represents the reflectance value for said near infrared spectral band; and combining said digital image of the blue spectral band, said digital image of the green spectral band, said digital image of the red spectral band, and said digital image of the near infrared digital image to create a multi-spectral data set.