Hyperspectral demixing using foveated compressive projections
AssigneeThe Boeing Company
InventorYuri Owechko
Life of this patent
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Abstract
The present disclosure generally relates to systems and methods for spectral demixing. An example technique includes obtaining empirical spectroscopic data representing a plurality of frequencies of electromagnetic energy that has interacted with a specimen, accessing a computer readable representation of a hierarchal spectral cluster tree representing a spectral library, demixing, with data on each of a plurality of levels of the hierarchal spectral cluster tree, foveated spectroscopic data derived from the empirical spectroscopic data, identifying at least one node in the hierarchal spectral cluster tree as corresponding to the empirical spectroscopic data, and outputting an endmember abundance assessment of the specimen corresponding to at least the at least one node.
Claims20
A method for spectral demixing, the method comprising:
- obtaining empirical spectroscopic data produced by a spectroscopic sensor and representing a plurality of frequencies of electromagnetic energy that has interacted with a specimen;
- accessing a computer readable representation of a hierarchal spectral cluster tree representing a spectral library;
- demixing, with data on each of a plurality of levels of the hierarchal spectral cluster tree, foveated spectroscopic data derived from the empirical spectroscopic data;
- identifying at least one node in the hierarchal spectral cluster tree as corresponding to the empirical spectroscopic data;
- and
- outputting an endmember abundance assessment of the specimen corresponding to at least the at least one node.
A system for spectral demixing, the system comprising:
- an interface configured to obtain empirical spectroscopic data produced by a spectroscopic sensor and representing a plurality of frequencies of electromagnetic energy that has interacted with a specimen;
- at least one electronic processor communicatively coupled to a computer readable representation of a hierarchal spectral cluster tree representing a spectral library;
- at least one electronic processor configured to demix, with data on each of a plurality of levels of the hierarchal spectral cluster tree, foveated spectroscopic data derived from the empirical spectroscopic data;
- at least one electronic processor configured to identify at least one node in the hierarchal spectral cluster tree as corresponding to the empirical spectroscopic data;
- and
- at least one electronic processor configured to output an endmember abundance assessment of the specimen corresponding to at least the at least one node.
Dependencies are inferred from the claim text.