Dual-wavelength temperature field imaging device, system and method based on compressed sensing
A technology for compressed sensing and imaging equipment, which is applied in temperature distribution maps, radiation pyrometry, measurement devices, etc., and can solve the problems of limited imaging sensitivity, limited detection sensitivity, limited application, area array detection measurement dimension and measurement number redundancy.
Active Publication Date: 2018-07-17
BEIJING INSTITUTE OF TECHNOLOGYGY
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[0037] Traditional infrared thermal imaging technology usually requires area array detectors, and its imaging sensitivity is limited by the detection sensitivity of area array detectors for unit pixels, and area array detection brings redundancy in measurement dimensions and measurement numbers, which limits its Application in dark field environment
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[0165] In order to make the purpose, technical solution and advantages of the invention clearer, the invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0166] In order to make the purpose, technical solution and advantages of the invention clearer, the invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the invention may be em...
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The present application provides a dual-wavelength temperature field imaging device based on compressed sensing, which includes an optical radiation modulation device configured to receive the optical radiation of the object to be measured, and load a plurality of preset masks to modulate the received optical radiation There are multiple beams of first optical radiation and multiple beams of second optical radiation, and multiple beams of the first optical radiation are emitted along a first path, and multiple beams of the second optical radiation are emitted along a second path different from the first path , the plurality of masks are generated according to the measurement matrix Φ transformation conforming to the RIP condition of the compressive sensing theory; the first filter element and the first detection device arranged on the first path; arranged on the second path The second filter element and the second detection device; the temperature determination device and the image generation device. The application also provides a system and method based on the device. It combines compressed sensing theory, dual-wavelength temperature measurement technology, complementary modulation technology and detection technology to reconstruct a two-dimensional infrared thermal image of the object to be measured.
Description
technical field [0001] The invention relates to the field of dual-wavelength temperature field imaging, in particular to a dual-wavelength temperature field imaging device, system and method based on compressed sensing. Background technique [0002] In the fields of aerospace, metallurgy, and automobile manufacturing, it is often necessary to conduct rapid and real-time monitoring of the object to be tested and various online workpieces in order to minimize the potential for accidents and improve the safety performance and quality of products. Although the traditional contact thermometer is used for measurement, although the accuracy is high, the detector must be in contact with the object to be measured. However, in some special occasions (such as when measuring the temperature of the flame in the engine combustion chamber and high-temperature furnace), the contact thermometer cannot be used, resulting in a non-contact temperature measurement method. The infrared temperatu...
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IPC IPC(8): G01J5/10
CPCG01J5/10G01J2005/0077G01J5/485
Inventor 俞文凯赵清葛墨林翟光杰姚旭日刘雪峰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY