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hdr dynamic infrared radiation source array target

A radiation source and dynamic technology, applied in the field of high dynamic infrared imaging, can solve the problem of lack of HDR dynamic infrared radiation source target and achieve the effect of convenient testing

Active Publication Date: 2020-08-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no recognized test method and instrument for the HDR dynamic range performance of the HDR thermal imaging system. One of the core problems is the lack of HDR dynamic infrared radiation source targets

Method used

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  • hdr dynamic infrared radiation source array target
  • hdr dynamic infrared radiation source array target
  • hdr dynamic infrared radiation source array target

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Experimental program
Comparison scheme
Effect test

Embodiment

[0019] The HDR dynamic infrared radiation source array target is composed of a dynamic infrared radiation source array, a radiation source program-controlled (analog) drive circuit, an FPGA control circuit (lower computer), a cabinet, a control and processing computer (upper computer), etc., such as figure 1 shown.

[0020] The box uniformly encapsulates the dynamic infrared radiation source array, the radiation source program-controlled driving circuit and the FPGA control circuit, and the internal circuit of the box communicates with the upper computer through the RS232 interface, such as figure 2 shown.

[0021] The array targets are arranged in a two-dimensional radiation source array according to the steady-state high-temperature zone, the steady-state low-temperature zone, and the program-controlled and tuned dynamic temperature zone within a certain range.

[0022] Two low-temperature steady-state infrared radiation sources, six medium-temperature dynamically tunable ...

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Abstract

The invention relates to an HDR dynamic infrared radiation source array target, which belongs to the technical field of high dynamic infrared imaging. The HDR dynamic infrared radiation source array target is composed of dynamic infrared radiation source array, radiation source program-controlled (analog) drive circuit, FPGA control circuit (lower computer), cabinet, control and processing computer (upper computer) and other parts. The array targets are arranged in a two-dimensional radiation source array according to a steady-state high temperature zone, a steady-state low temperature zone, and a dynamic temperature zone that is programmed and tuned within a certain range. First, the temperature modulation law and the phase difference between the radiation sources are preset on the lower computer through the upper computer; then under the triggering control of the upper computer, the HDR dynamic infrared radiation source array target is set by the lower computer, through the radiation source program-controlled drive circuit Each radiation unit on the array target is driven to provide high dynamic target scene radiation for the dynamic range performance test of the HDR thermal imaging system, thereby realizing the test and evaluation of the dynamic range performance of the HDR thermal imaging system.

Description

technical field [0001] The invention relates to an HDR dynamic infrared radiation source array target, in particular to a high-dynamic range (HDR, High-Dynamic Range) dynamic infrared radiation source array target, which is suitable for testing the dynamic range performance of an HDR thermal imaging system; Infrared imaging technology field. Background technique [0002] Thermal imaging technology can display the radiation difference of the scene in the form of images according to the radiation difference formed by the temperature or surface characteristics of the scene. It has the advantages of passive imaging, good concealment, strong anti-interference ability, and can work around the clock. , medical, aerospace and other fields have a wide range of applications. However, in practical applications, when a strong radiation source (such as the sun, flames, etc.) appears in the field of view of a conventional thermal imaging system, the radiation range of the scene exceeds t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/20
CPCG01J5/20G01J2005/0077G01J2005/202G01J5/80
Inventor 金伟其王铭赫李力王霞李硕
Owner BEIJING INSTITUTE OF TECHNOLOGYGY