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Title: Methods for gas detection using stationary hyperspectral imaging sensors

Abstract

According to one embodiment, a method comprises producing a first hyperspectral imaging (HSI) data cube of a location at a first time using data from a HSI sensor; producing a second HSI data cube of the same location at a second time using data from the HSI sensor; subtracting on a pixel-by-pixel basis the second HSI data cube from the first HSI data cube to produce a raw difference cube; calibrating the raw difference cube to produce a calibrated raw difference cube; selecting at least one desired spectral band based on a gas of interest; producing a detection image based on the at least one selected spectral band and the calibrated raw difference cube; examining the detection image to determine presence of the gas of interest; and outputting a result of the examination. Other methods, systems, and computer program products for detecting the presence of a gas are also described.

Inventors:
 [1];  [2]
  1. San Ramon, CA
  2. Castro Valley, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1040005
Patent Number(s):
8,165,340
Application Number:
12/575,269
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Conger, James L, and Henderson, John R. Methods for gas detection using stationary hyperspectral imaging sensors. United States: N. p., 2012. Web.
Conger, James L, & Henderson, John R. Methods for gas detection using stationary hyperspectral imaging sensors. United States.
Conger, James L, and Henderson, John R. Tue . "Methods for gas detection using stationary hyperspectral imaging sensors". United States. https://www.osti.gov/servlets/purl/1040005.
@article{osti_1040005,
title = {Methods for gas detection using stationary hyperspectral imaging sensors},
author = {Conger, James L and Henderson, John R},
abstractNote = {According to one embodiment, a method comprises producing a first hyperspectral imaging (HSI) data cube of a location at a first time using data from a HSI sensor; producing a second HSI data cube of the same location at a second time using data from the HSI sensor; subtracting on a pixel-by-pixel basis the second HSI data cube from the first HSI data cube to produce a raw difference cube; calibrating the raw difference cube to produce a calibrated raw difference cube; selecting at least one desired spectral band based on a gas of interest; producing a detection image based on the at least one selected spectral band and the calibrated raw difference cube; examining the detection image to determine presence of the gas of interest; and outputting a result of the examination. Other methods, systems, and computer program products for detecting the presence of a gas are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {4}
}

Patent:

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