QUANTIFYING GAS IN PASSIVE OPTICAL GAS IMAGING
First Claim
Patent Images
1. 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).
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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.
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Citations
20 Claims
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1. A method for quantify gas in an image of a scene having a background and a possible occurrence of gas, the method comprising:
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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). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. 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:
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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). - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. 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:
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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).
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Specification