Infrared image processing method and infrared image processing device

An infrared image processing and pixel technology, applied in image data processing, image enhancement, image analysis, etc., can solve the problems of low correction accuracy, poor adaptability, non-uniformity drift, etc., to improve the quality of infrared images, reduce infrared non-uniform Good uniformity and transplantability

Inactive Publication Date: 2012-07-25
SHENZHEN POLYTECHNIC
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Problems solved by technology

[0005] Although there are many non-uniformity correction algorithms for thermal imaging, no algorithm with strong adaptability has been found so far. Various non-uniformity correction algorithms have their shortcomings. For example, the one-point correction method can only Correct the output signal of the unit at the same place. As the offset relative to this calibration point increases, the correction error will increase due to

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  • Infrared image processing method and infrared image processing device
  • Infrared image processing method and infrared image processing device
  • Infrared image processing method and infrared image processing device

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[0020] In the infrared image processing method and device of the embodiment of the present invention, the calibrated first offset and first gain coefficient are re-corrected by using the two-point correction method and the one-point correction method for the infrared image of a black body at room temperature, and the obtained calibration parameters are more accurate. Accurate, and the corrected parameters are used for non-uniformity correction, thereby effectively improving the quality of infrared images and reducing infrared non-uniformity. The method has strong adaptability, fast calculation speed, and can realize real-time correction of infrared images; the hardware structure is simple and reliable , good portability, can be easily embedded into other infrared image application systems, greatly shorten the product development cycle, reduce costs, and facilitate product upgrades. The implantability of the device is good.

[0021] Please refer to figure 1 , the infrared imag...

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Abstract

An embodiment of the invention discloses an infrared image processing method and an infrared image processing device. Based on data which are generated by calibrating a low-temperature black body and a high-temperature black body and used for non-uniform correction, the infrared image processing method includes the steps: normal-temperature black body imaging, offset correction, target imaging, blind pixel replacement, non-uniform correction, infrared image output and temperature judgment. A first calibrated offset and a first calibrated gain coefficient are corrected again by means of two-point correction and one-point correction for infrared images of a normal-temperature black body, and the corrected parameters are used for non-uniform correction, so that infrared image quality is effectively improved, infrared non-uniformity is reduced, the method is high in adaptability, and the device is fine in portability.

Description

technical field [0001] The invention relates to the technical field of infrared thermal image processing, in particular to an infrared image processing method and device. Background technique [0002] At present, infrared image processing technology has been widely used in many fields such as military, medical treatment, fire protection, security, transportation, electric power, construction, electronic manufacturing and petrochemical metallurgy. Under ideal conditions, the corresponding infrared system is uniformly irradiated by the infrared focal plane array, and the output amplitude should be exactly the same. But in fact, due to the inhomogeneity of the semiconductor material used to make the device (impurity concentration, crystal defects, and inhomogeneity of the internal structure, etc.), mask errors, defects, process conditions, and the use environment, the output amplitude is not the same. This is the non-uniformity of the infrared focal plane array response. [0...

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Application Information

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IPC IPC(8): G06T5/00G06T7/00
Inventor 苏满红吴志敏钟江生叶玮渊
Owner SHENZHEN POLYTECHNIC
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