Device and method for two-point correction of temperature control shutter
A point correction and shutter technology, applied in the field of infrared detector data correction and compensation, can solve the problems of taking a long time, degrading imaging quality, and huge manpower, financial and material resources for mass production equipment, and saving data collection time and cost. Low, time-saving and labor-cost effects
Inactive Publication Date: 2020-04-17
WUHAN GUIDE INFRARED CO LTD
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[0004] In the prior art, when the operating state of the equipment is consistent with the state when collecting data, the image quality after correction in this way is relatively high, but for flying or mobile thermal imaging cameras such as pods, the environment changes will be very large, and the If it exceeds the range of the data template collected in advance or is inconsistent with the data collected at rest, the imaging quality will be greatly reduced. At the same time, it will take a long time to collect and correct the data in advance, which will consume huge manpower, financial resources and material resources for mass production equipment. in data collection
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[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0052] Such as Figure 1-4 As shown, as the first aspect of the present invention, a two-point correction temperature-controlled shutter device is provided, the device includes a low-temperature shutter 1, a high-temperature shutter 2, a cooling module, a heating module, a first motion control module 5, The second motion control module 6, the first background acquisition module, the second background acquisition module, the first temperature measurement board 3...
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The invention discloses a device and method for two-point correction of a temperature control shutter. The device comprises a low-temperature shutter plate, a high-temperature shutter plate, a refrigeration module, a heating module, a first motion control module, a second motion control module, a first background acquisition module, a second background acquisition module and a processing module, wherein the refrigeration module is used for controlling the temperature of the low-temperature shutter sheet to be a first preset temperature, the heating module is used for controlling the temperature of the high-temperature shutter sheet to be a second preset temperature, the first motion control module is used for moving the low-temperature shutter sheet from the initial position to an infraredlight path window, the second motion control module is used for moving the high-temperature shutter sheet from the initial position to the infrared light path window, the first background acquisitionmodule is used for acquiring the actual output response xi of the background of the low-temperature shutter sheet, the second background acquisition module is used for acquiring the actual output response xiB of the background of the high-temperature shutter sheet, and the processing module is used for carrying out two-point correction through the actual output response xi of the background of the low-temperature shutter sheet and the actual output response xiB of the background of the high-temperature shutter sheet.
Description
technical field [0001] The invention relates to the field of infrared detector data correction and compensation, in particular to a device and method for two-point correction of a temperature-controlled shutter. Background technique [0002] Due to the limitations of the infrared detector manufacturing process, each detector element of the infrared detector has a different response rate to infrared radiation, and ghost images and dead pixels will appear on the imaging surface, which will affect the imaging quality of the thermal imager. Ideally, when the infrared focal plane detector is irradiated by uniform light, the video output signal amplitude of each pixel should be exactly the same. In fact, due to the inhomogeneity of the semiconductor material used to make the device, the inhomogeneity of the doping (various composition ratios), the mask error, and the instability of the production process control, the video output amplitude will vary. Uniform phenomenon. That is ...
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IPC IPC(8): G01J5/00
CPCG01J5/00G01J5/80
Inventor程正林郭乔曹松刘蒙易爱清徐峰张前进南旭东刘洋
OwnerWUHAN GUIDE INFRARED CO LTD