Advertisement

Journal of the Korean Physical Society

, Volume 73, Issue 12, pp 1821–1826 | Cite as

A Wide Dynamic Range NUC Algorithm for IRCS Systems

  • Li-Hua Cai
  • Feng-Yun He
  • Song-Tao Chang
  • Zhou LiEmail author
Article
  • 8 Downloads

Abstract

Uniformity is a key feature of state-of-the-art infrared focal planed array (IRFPA) and infrared imaging system. Unlike traditional infrared telescope facility, a ground-based infrared radiant characteristics measurement system with an IRFPA not only provides a series of high signal-to-noise ratio (SNR) infrared image but also ensures the validity of radiant measurement data. Normally, a long integration time tends to produce a high SNR infrared image for infrared radiant characteristics radiometry system. In view of the variability of and uncertainty in the measured target’s energy, the operation of switching the integration time and attenuators usually guarantees the guality of the infrared radiation measurement data obtainted during the infrared radiant characteristics radiometry process. Non-uniformity correction (NUC) coefficients in a given integration time are often applied to a specified integration time. If the integration time is switched, the SNR for the infrared imaging will degenerate rapidly. Considering the effect of the SNR for the infrared image and the infrared radiant characteristics radiometry above, we propose a-wide-dynamic-range NUC algorithm. In addition, this essasy derives and establishes the mathematical modal of the algorithm in detail. Then, we conduct verification experiments by using a ground-based MWIR(Mid-wave Infared) radiant characteristics radiometry system with an Ø400 mm aperture. The experimental results obtained using the proposed algorithm and the traditional algorithm for different integration time are compared. The statistical data shows that the average non-uniformity for the proposed algorithm decreased from 0.77% to 0.21% at 2.5 ms and from 1.33% to 0.26% at 5.5 ms. The testing results demonstrate that the usage of suggested algorithm can improve infrared imaging quality and radiation measurement accuracy.

Keywords

Wide dynamic range Non-uniformity correction Infrared radiation Cooling infrared focal plane array 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    S. E. Godoy et al., Applied Optics 47, 5894 (2008).CrossRefGoogle Scholar
  2. [2]
    U. Sakoglu et al., Proc. SPIE 5558, 69 (2004).ADSCrossRefGoogle Scholar
  3. [3]
    Gutschwager et al., Appl. Opt. 54, 10599 (2015).Google Scholar
  4. [4]
    V. F. Paz et al., Light Science & Applications 1, e36 (2012).CrossRefGoogle Scholar
  5. [5]
    A. F. Milton et al., Optical Engineering 24, 855 (1985).ADSCrossRefGoogle Scholar
  6. [6]
    Y. Cao et al., Applied Optics 52, 6266 (2013).ADSCrossRefGoogle Scholar
  7. [7]
    D. R. Pipa et al., IEEE Transactions on Image Processing A Publication of the IEEE Signal Processing Society 21, 4758 (2012).CrossRefGoogle Scholar
  8. [8]
    E. Vera et al., Optics Letters 36, 352 (2011).CrossRefGoogle Scholar
  9. [9]
    M. J. Booth et al., Light Science & Applications 3, e165 (2014).ADSCrossRefGoogle Scholar
  10. [10]
    C. Zuo et al. Optik - International Journal for Light and Electron Optics 123, 833 (2012).CrossRefGoogle Scholar
  11. [11]
    Jin et al. Infrared Physics & Technology 78, 1 (2016).Google Scholar
  12. [12]
    M. Yan et al., Light Science & Applications, 6, e17076 (2016).CrossRefGoogle Scholar
  13. [13]
    N. Meitav et al. Light Science & Applications, 5, e16048 (2016).CrossRefGoogle Scholar
  14. [14]
    Sheng-Hui et al., J. Opt. Soc. Am. A Opt. Image Sci. Vis. 33, 938 (2016).Google Scholar
  15. [15]
    C. Zuo et al., Optical Review 18, 197 (2011).ADSCrossRefGoogle Scholar
  16. [16]
    M. Ochs et al., Infrared Physics & Technology, 53, 112 (2010).ADSCrossRefGoogle Scholar
  17. [17]
    J. Zhang et al., Light Science & Applications 7, 17180 (2018).ADSCrossRefGoogle Scholar
  18. [18]
    W. W. Hauswirth et al., Journal of Vision 9, 27 (2009).CrossRefGoogle Scholar
  19. [19]
    Z. Liu et al., Infrared Physics & Technology 76, 667 (2016).ADSCrossRefGoogle Scholar
  20. [20]
    W. Qian et al., Applied Optics, 50, 1 (2011).ADSCrossRefGoogle Scholar
  21. [21]
    C. C. Hou et al., Light Science & Applications 7, 17170 (2018).ADSCrossRefGoogle Scholar
  22. [22]
    J. Zhao et al., Optics Communications 296, 47 (2013).ADSCrossRefGoogle Scholar
  23. [23]
    H. X Zhou et al., Infrared Physics & Technology 53, 295 (2010).ADSCrossRefGoogle Scholar

Copyright information

© The Korean Physical Society 2018

Authors and Affiliations

  • Li-Hua Cai
    • 1
  • Feng-Yun He
    • 1
  • Song-Tao Chang
    • 1
  • Zhou Li
    • 1
    • 2
    Email author
  1. 1.Changchun Institute of Optics, Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina
  2. 2.University of Chinese Academy of SciencesBeijingChina

Personalised recommendations