Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지

High Resolution Electronic Processor Design for Thermal Imager with 320x240 Staring Array Infrared Detector

320x240 적외선 배열검출기를 이용한 고분해능 열상 신호처리기 구현

  • 홍석민 (국방과학연구소 기술연구본부) ;
  • 유위경 (국방과학연구소 기술연구본부) ;
  • 윤은숙 (국방과학연구소 기술연구본부)
  • Published : 2006.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper describes the design principles and methods of electronic processor for thermal imager with 320$\times$240 staring array infrared detector. For the detector's nonuniformity correction and excellent image quality, we have designed the multi-point correction method using the defocusing technique of the optics. And to enhance the image of low contrast and improve the detection capability, the new technique of histogram processing has been designed. Through these image processing techniques, we have developed the high quality thermal imager and acquired a satisfactory thermal image. The result of MRTD(Minimum Resolvable Temperature Difference) is $0.1^{\circ}C$ at 4cycles/mard.

Keywords

References

  1. J. L. Miller, Principles of Irifrared Technology, Van Nostrand Reinhold, New York, 1994
  2. J. S. Accetta and D. L. Shumaker, The Irifrared and Electro-Optical Systems Handbook, ERIM and SPIE Optical Engineering Press, 1993
  3. M. Broekaert and Bruno Noel du Payrat, 'Nonlinearity & nonuniformity corrections for IRIS family of IRCCD thermal imagers', SPIE, Vol. 2269, pp.507-523, 1994
  4. R. C. Gonzalez and R. E. Woods, Digital Image Processing, Addison Wesley publishing, 1993
  5. 홍석민, 유위경, 윤은숙, '열상장비의 실시간 영상 신호처리', 군사과학기술학회논문지, 제7권, 제4호, pp. 79-86, 2004. 12
  6. F. Blommel, P. Dennis, D. Bradley, 'The effects rnicroscan operation on staring infrared sensor imagery', SPIE Vol. 1540, pp.653-664, 1991
  7. J. Sanders, W. Wan, V. Harris, D. Newton, G. Tylinski, M. Wolschon, J. Imamura, 'Compact airborne staring FPA sensor with micoscanning', SPIE Vol. 2743, pp.158 -168, 1996
  8. J. Fortin, P. Chevrette, 'Realization of a fast microscanning device for infrared focal arrays', SPIE Vol. 2743, pp.185-196, 1996