Patent ID: 7221798
Filing Date: 2007-05-22
Classification: G01N,G06K,G06T

Abstract:
1. A computer readable medium encoded with a computer program for aiding a user in the selection of a candidate spectral endmember for a scene composed of multiple pixels comprising: reading scene spectral data into the processor; initiating a find candidate spectral endmember sequence which includes: comparing the constructed shade spectrum and non-shade spectrum to the scene spectral data to produce a comparison image; displaying the comparison image to a user, wherein the comparison image highlights unmatched scene spectral data within each of the multiple pixels, the unmatched scene spectral data being scene spectral data which does not match the constructed shade spectrum or non-shade spectrum; calculating for each of the multiple pixels a difference value between the unmatched scene spectral data within each of the multiple pixels and the constructed non-shade spectrum; and determining a range of difference values and displaying a difference image including each of the multiple pixels whose difference value falls into the range, the candidate spectral endmember being selected from the multiple pixels whose difference value is within the range.