Quantifying gas in passive optical gas imaging
AssigneeFLIR Systems, Inc.
InventorsJonas Sandsten, Jonce Kotaleski, Erik Ekerot
Life of this patent
Estimating the term…
Abstract
A method and a system to quantify gas in a thermal imaging device, said method comprising obtaining a gas-absorption-path-length image as a scene difference infrared image based on a gas infrared image and a scene background infrared image substantially depicting the same scene and generating a quantified scene difference infrared image based on said scene difference infrared image and a predefined gas-quantifying relation.
Claims20
A method for quantify gas in an image of a scene having a background and a possible occurrence of gas, the method comprising:
- obtaining a gas-absorption-path-length image as a scene difference infrared image, the gas-absorption-path-length image determined based on a gas infrared image and a scene background infrared image depicting a substantially same scene;
- and
- generating a quantified scene difference infrared image based on the scene difference infrared image and a predefined gas-quantifying relation (GQR).
A thermal imaging device for quantify gas in an image of a scene having a background and a possible occurrence of gas, the thermal image device comprising:
- an infrared (IR) imaging system configured to capture a gas infrared image and a scene background infrared image depicting a substantially same scene;
- a memory;
- and
- a processor communicatively coupled to the IR imaging system and the memory, the processor being configured to:
- obtain a gas-absorption-path-length image as a scene difference infrared image, the gas-absorption-path-length image determined based on the gas infrared image and the scene background infrared image;
- and
- generate a quantified scene difference infrared image based on the scene difference infrared image and a predefined gas-quantifying relation (GQR).
A non-transitory computer-readable medium storing instructions which, when executed by a processor of a thermal imaging device, cause the thermal imaging device to perform a method of quantifying gas in an image of a scene having a background and a possible occurrence of gas, the method comprising:
- obtaining a gas-absorption-path-length image as a scene difference infrared image, the gas-absorption-path-length image determined based on a gas infrared image and a scene background infrared image depicting a substantially same scene;
- and
- generating a quantified scene difference infrared image based on the scene difference infrared image and a predefined gas-quantifying relation (GQR).
Dependencies are inferred from the claim text.