Design of infrared target system with Zhang Zhengyou calibration method

Tan WANG; Lei-lei WANG; Wei-guo ZHANG; Xiao-tao DUAN; Wan-li WANG

doi:10.3788/OPE.20192708.1828

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Design of infrared target system with Zhang Zhengyou calibration method

Information Sciences | 更新时间：2020-08-13

- Design of infrared target system with Zhang Zhengyou calibration method
- Optics and Precision Engineering Vol. 27, Issue 8, Pages: 1828-1835(2019)
- 作者机构：
  
  西安应用光学研究所，陕西西安 710065
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20192708.1828
  CLC： TN21
- Received：14 January 2019，
  
  Accepted：28 March 2019，
  
  Published：15 August 2019
- 稿件说明：
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Tan WANG, Lei-lei WANG, Wei-guo ZHANG, et al. Design of infrared target system with Zhang Zhengyou calibration method[J]. Optics and precision engineering, 2019, 27(8): 1828-1835.
DOI：

Tan WANG, Lei-lei WANG, Wei-guo ZHANG, et al. Design of infrared target system with Zhang Zhengyou calibration method[J]. Optics and precision engineering, 2019, 27(8): 1828-1835. DOI： 10.3788/OPE.20192708.1828.

摘要

高精密红外靶标是红外成像领域的重点研究内容之一。基于张正友标定原理，通过材料温度和表面辐射特性设计适合于红外标定的简便式精密靶标；基于张正友标定方法的基本原理，提出靶板设计的基本要素；根据表面辐射机理、靶面特征点的几何位置关系及热力学原理，设计高低辐射区域具有锐利分界线的靶板，并借助成像原理分析靶板板面误差精度，获得符合基本要素的简便式高精密靶标。对设计的靶标进行试验，结果表明：该靶板在较低温差载荷(相对于室温22 ℃)的作用下，靶面高辐射区和低辐射区边界锐利，能够为标定提供精确的特征点，标定反投影均方根误差小于0.16 pixel，适合于红外成像系统的高精密标校。

Abstract

A precise infrared target system (IRTS) plays a major role in an infrared imaging system. In this study

using the Zhang Zhengyou calibration method

we design a simple precision target based on the properties of a material's thermal and surface radiation. The design elements of the IRITS are presented according to the principles of the Zhang Zhengyou calibration method. Based on the mechanism of radiation

thermodynamic theory

and position relation of the feature position

a target plan possessing high and low radiation areas with sharp boundaries is designed. An error analysis of the target plan is then implemented according to the aging principle. Experiments are conducted with the designed precise IRTS. Results show that the designed IRTS can supply feature points by sharp boundaries from different radiation areas for an infrared camera and that the root mean square of the back-projection error is less than 0.16 pixels. These results suggest that the IRTS can be used to calibrate infrared cameras precisely.

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