Optimized orthonormal system and method for reducing dimensionality of hyperspectral images

Patent metadata

Field	Value
Publication number	US-8948540-B2
Application number	US-201314090753-A
Country	US
Kind code	B2
Filing date	Nov 26, 2013
Priority date	Apr 13, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A method for reducing dimensionality of hyperspectral images includes receiving a hyperspectral image having a plurality of pixels. The method may further include establishing an orthonormal basis vector set comprising a plurality of mutually orthogonal normalized members. Each of the mutually orthogonal normalized members may be associated with one of the plurality of pixels of the hyperspectral image. The method may further include decomposing the hyperspectral image into a reduced dimensionality image, utilizing calculations performed while establishing said orthonormal basis vector set. A system configured to perform the method may also be provided.

First claim

What is claimed is:

1. A method of hyperspectral image dimension reduction, comprising:
receiving a hyperspectral image having a plurality of pixels;
iteratively establishing a basis vector (BV) set comprising an initial basis vector and individual spectral vectors from the plurality of pixels that have a residual magnitude over a threshold value when a spectral vector of a current iteration is unmixed by unconstrained unmixing with a prior iteration of the BV set, wherein the i…

Assignees

• Raytheon Co

Inventors

• Robinson Ian S
• Flanders Bradley

Classifications

• G01J3/0264 Primary

  Physics · mapped topic

• G06V20/13

  Physics · mapped topic

• G06K9/0063

  Physics · mapped topic

• G01J2003/2836

  Physics · mapped topic

• G01J3/06

  Physics · mapped topic