Earticle

초록

영어

MRTD (minimum resolvable temperature difference) is an important parameter to evaluate the infrared thermal imager. MRTD is not only related to the spatial resolution of the system, but also to many factors such as optical system, detector array and so on. The measurement technique and principle of the medical infrared thermal imager’s MRTD is deeply analyzed, and the MRTD measurement model is established in this paper. The MRTD measurement system of infrared thermal imager based on CCD imaging technology is designed. CCD is used to carry on the interpretation of temperature difference in this system instead of the human eye, which can avoid the effect of some factors on the subjective image quality evaluation, such as the contrast, the human interference flaw and so on. The sub-pixel edge detection algorithm is used to deal with the four-bar target image, which can effectively suppress the interface of the random noise on four-bar target image. The experimental results show that the MRTD testing accuracy of the system can reach 0.055℃.

목차

Abstract
 1. Introduction
 2. The Establishment of MRTD Measurement Model
  2.1. Traditional MRTD Measurement
  2.2. MRTD Measurement Model
 3. The MRTD Measurement System of Infrared Thermal Imager Based on CCD Imaging Technology
 4. Four-Bar Target Image Processing
 5. Experimental Results and Conclusions
 References

키워드

저자

• Cao Miao [ Changchun University of Science and Technology, Jilin Changchun, 130022, China ]
• Cui Wenjie [ Changchun University of Science and Technology, Jilin Changchun, 130022, China ]
• Yao qinghua [ Changchun University Of Technology, Jilin Changchun, 130012, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605