Methods for producing a temperature map of a scene
First Claim
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1. A method of generating a temperature map, the method comprising:
- receiving analog infrared light data of a scene;
converting the analog infrared light data from analog to digital format to create digital infrared light data, the digital infrared light data comprising a plurality of frames, each frame comprising a plurality of pixels;
computing, by a processor and for each frame, a correction array having a plurality of correction pixel values, wherein each correction pixel value is created by;
determining a correction pixel value for a neighbor pixel value of a neighbor pixel;
computing a difference between a first correction value of a pixel value of a pixel and a correction pixel value for the neighbor pixel value, wherein the neighbor pixel is adjacent to the pixel; and
updating the correction pixel value using the difference;
updating each frame based on the respective correction array;
creating a lookup table for each frame of the plurality of frames based on the digital infrared light data;
generating a temperature map using the lookup table; and
separately transmitting the temperature map and the digital infrared light data in a data channel.
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Abstract
Methods for generating a temperature map of a scene are provided. A method may include receiving thermal data of the scene. The thermal data includes frames of thermal infrared data. A mapping may be created for each frame based on the digital thermal infrared data. The method further includes generating the temperature map using the mapping. The temperature map is generated prior to a contrast enhancement process. The method further includes separately transmitting the temperature map and the digital thermal infrared data in a data channel.
79 Citations
17 Claims
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1. A method of generating a temperature map, the method comprising:
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receiving analog infrared light data of a scene; converting the analog infrared light data from analog to digital format to create digital infrared light data, the digital infrared light data comprising a plurality of frames, each frame comprising a plurality of pixels; computing, by a processor and for each frame, a correction array having a plurality of correction pixel values, wherein each correction pixel value is created by; determining a correction pixel value for a neighbor pixel value of a neighbor pixel; computing a difference between a first correction value of a pixel value of a pixel and a correction pixel value for the neighbor pixel value, wherein the neighbor pixel is adjacent to the pixel; and updating the correction pixel value using the difference; updating each frame based on the respective correction array; creating a lookup table for each frame of the plurality of frames based on the digital infrared light data; generating a temperature map using the lookup table; and separately transmitting the temperature map and the digital infrared light data in a data channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 16)
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11. A method of generating a temperature map, the method comprising:
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receiving analog infrared light data of a scene; converting the analog infrared light data from analog to digital format to create digital infrared light data, the digital infrared light data comprising a plurality of frames, each frame comprising a plurality of pixels; replacing a pixel of the plurality of pixels in the digital infrared light data by; determining that the pixel is outside a range of a statistical metric based on one or more additional neighbor pixels that are adjacent to the pixel, and substituting the pixel with information gathered from the one or more additional neighbor pixels; creating a lookup table for each frame of the plurality of frames based on the digital infrared light data; generating a temperature map using the lookup table; and separately transmitting the temperature map and the digital infrared light data in a data channel. - View Dependent Claims (12, 13, 14, 15, 17)
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Specification