Pseudo-color processing method and device for infrared thermal image

A processing method, infrared heat technology, applied in the field of image processing, can solve problems such as inability to accurately judge equipment problems, unfavorable measures to be taken, lack of effective temperature data, etc., to reduce damage and loss, uniform and smooth distribution, and improve temperature representation effect of ability

Inactive Publication Date: 2017-10-03
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

In practical applications, in order to improve the visualization effect of infrared thermal images, the 256-level grayscale value is converted into pseudo-color, but the pseudo-color is limited to 256 color data, but according to the temperature range and resolution that infrared camera equipment can obtain, the acquired The number of temperature data is far more than 256, so the traditional pseudo-color method can no longer fully display the temperature information in the infrared thermal image, that is, it lacks the ability to effectively represent the temperature data, and cannot accurately judge the potential problems inside the equipment, which is not conducive to professionals Take timely measures to reduce the damage and loss caused by equipment failure

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  • Pseudo-color processing method and device for infrared thermal image
  • Pseudo-color processing method and device for infrared thermal image
  • Pseudo-color processing method and device for infrared thermal image

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Embodiment Construction

[0037] The present application is described in detail below in conjunction with the examples, but the present application is not limited to these examples.

[0038] see figure 1 , an embodiment of the present invention provides a false color processing method for an infrared thermal image, the method comprising:

[0039] 101. Discretize the color space to form a three-dimensional color data matrix;

[0040] In the embodiment of the present invention, the color space may be HSI (Hue, Saturation, Intensity), CMY (Cyan, Magenta, Yellow) or HSV (hue, saturation, value), etc.

[0041] In the embodiment of the present invention, the HSI color space is taken as an example for illustration, and the discretized color space is specifically:

[0042] Equidistant Batch HSI color space.

[0043] Equidistant discretization refers to dividing the value range of a continuous variable evenly, that is, the discrete intervals ΔH, ΔI and ΔS of the continuous variable hue H, brightness I and sa...

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Abstract

The invention discloses a pseudo-color processing method for an infrared thermal image. The method comprises the steps that a color space is discretized, and a three-dimensional color data matrix is formed; chromatic aberration of adjacent colors is calculated according to the three-dimensional color data matrix, and not less than 256 pieces of color data is obtained; and all the color data is sequentially arranged according to the calculated chromatic aberration of the adjacent colors, then a mapping relation between sequentially arranged temperature data and the sequentially arranged color data is established, and pseudo-color processing of the infrared thermal image is realized. Through the method, the temperature representation ability of the infrared thermal image is greatly improved, and therefore an engineer can quickly and accurately judge a potential problem inside equipment by observing the temperature level and difference and take measures in time to lower damage and loss caused by a fault of the equipment.

Description

technical field [0001] The application relates to a method and device for processing infrared thermal images with false colors, belonging to the field of image processing. Background technique [0002] Thermal imaging technology refers to converting the infrared light of the equipment into infrared thermal images visible to humans, and then by observing and analyzing the temperature field changes represented by the infrared thermal images, the possible faults of the equipment can be identified. Therefore, thermal imaging technology is widely used in Industrial, electrical and petrochemical industries. [0003] In the prior art, the obtained infrared thermal image is an 8-bit grayscale image, which can express no more than 256 grayscale values, so as to show the difference in temperature. In practical applications, in order to improve the visualization effect of infrared thermal images, the 256-level grayscale value is converted into pseudo-color, but the pseudo-color is lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/90
CPCG06T2207/10048G06T7/90
Inventor 付冬梅杨焘丁邺
Owner UNIV OF SCI & TECH BEIJING
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