Methods for gas detection using stationary hyperspectral imaging sensors,申请号US20090575269-传众专利搜索

Methods for gas detection using stationary hyperspectral imaging sensors

申请公布号：US8165340(B2)

申请号：US20090575269

申请日期：2009.10.07

申请公布日期：2012.04.24

申请人：

CONGER JAMES L.;HENDERSON JOHN R.;LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

发明人：CONGER JAMES L.;HENDERSON JOHN R.

分类号：G06K9/00

主分类号：G06K9/00

摘要：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.