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US 9,471,969 B2Granted
Methods for differential image quality enhancement for a multiple detector system, systems and use thereof
AssigneeExxonMobil Upstream Research Company
InventorsYousheng Zeng, Jonathan M. Morris, Hazem M. Abdelmoati
Life of this patent
Estimating the term…
Abstract
Methods for differential image quality enhancement for a detection system including multiple electromagnetic radiation detectors which include obtaining an image from a chemical band electromagnetic radiation detector and an image from a reference band electromagnetic radiation detector. Each of the images includes a plurality of pixels, each pixel having an associated intensity value. One or more intensity values of a plurality of pixels from the reference band image are adjusted based on one or more intensity value parameters of the chemical band image.
Claims22
A method for detecting at least one chemical species using a detection system including multiple electromagnetic radiation detectors, the method comprising:
- obtaining a first image from a first electromagnetic radiation detector configured to detect emission or absorption of the at least one chemical species released into an environment, the image including a first plurality of pixels, each pixel having an associated intensity value;
- obtaining a second image from a second electromagnetic radiation detector configured to provide a reference background, the image including a second plurality of pixels, each pixel having an associated intensity value;
- adjusting one or more intensity values of the first plurality of pixels based on one or more intensity value parameters of the first image;
- adjusting one or more intensity values of the second plurality of pixels based on the one or more intensity value parameters of the first image;
- obtaining subsequent images from the first electromagnetic radiation detector and the second electromagnetic radiation detector;
- adjusting pixels of the subsequent images from the first electromagnetic radiation detector based on the adjusted intensity values of the first plurality of pixels;
- adjusting pixels of the subsequent images from the second electromagnetic radiation detector based on the adjusted intensity values of the second plurality of pixels;
- and
- determining the presence or absence of a chemical species based, at least in part, on a comparison of the adjusted images from the first electromagnetic radiation detector and the second electromagnetic radiation detector, wherein the first plurality of pixels of the first image and the second plurality of pixels of the second image are substantially temporally and spatially aligned.
6 more elements
A system for detecting at least one chemical species comprising:
- a lens;
- a beam splitter;
- a first electromagnetic radiation detector configured to detect emission or absorption of the at least one chemical species released into an environment;
- a second electromagnetic radiation detector configured to provide a reference background;
- and
- an analysis system including code within a processor, a non-transitory, computer-readable medium, or a combination thereof, the code configured to direct the processor to:
- identify a first image from the first electromagnetic radiation detector, the first image including a first plurality of pixels, each pixel having an associated intensity value,
- identify a second image from the second electromagnetic radiation detector, the second image including a second plurality of pixels, each pixel having an associated intensity value,
- adjust one or more intensity values of the first plurality of pixels based on one or more intensity value parameters of the first image;
- adjust one or more intensity values of the second plurality of pixels based on the one or more intensity value parameters of the first image;
- obtain subsequent images from the first electromagnetic radiation detector and the second electromagnetic radiation detector;
- adjust pixels of the subsequent images from the first electromagnetic radiation detector based on the adjusted intensity values of the first plurality of pixels;
- adjust pixels of the subsequent images from the second electromagnetic radiation detector based on the adjusted intensity values of the second plurality of pixels;
- and
- determine the presence or absence of a chemical species based, at least in part, on a comparison of the adjusted images from the first electromagnetic radiation detector and the second electromagnetic radiation detector, wherein the first plurality of pixels of the first image and the second plurality of pixels of the second image are substantially temporally and aligned.
12 more elements
A method of detecting at least one chemical species comprising:
- providing a detection system including a first electromagnetic radiation detector configured to detect emission or absorption of the at least one chemical species released into an environment and a second electromagnetic radiation detector configured to provide a reference background;
- splitting an electromagnetic radiation beam into at least a first electromagnetic radiation beam and a second electromagnetic radiation beam;
- receiving at least a portion of the first electromagnetic radiation beam by the first electromagnetic radiation detector;
- receiving at least a portion of the second electromagnetic radiation beam by the second electromagnetic radiation detector;
- generating a first image by the first electromagnetic radiation detector and a second image by the second electromagnetic radiation detector;
- adjusting gain and/or offset of the first plurality of pixels using a maximum intensity (Imax) and a minimum intensity (Imin) of the first image;
- adjusting gain and/or offset of the second plurality of pixels using the maximum intensity (Imax) and the minimum intensity (Imin) of the first image;
- obtaining subsequent images from the first electromagnetic radiation detector and the second electromagnetic radiation detector;
- adjusting pixels of the subsequent images from the first electromagnetic radiation detector based on the gain and/or offset of the first plurality of pixels;
- adjusting pixels of the subsequent images from the second electromagnetic radiation detector based on the gain and/or offset of the second plurality of pixels;
- and
- determining the presence of at least one chemical species based, at least in part, on a comparison of the adjusted images from the first electromagnetic radiation detector and the second electromagnetic radiation detector, wherein the first plurality of pixels of the first image and the second plurality of pixels of the second image are substantially temporally and spatially aligned.
9 more elements
Dependencies are inferred from the claim text.