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2021 Vol.9, Issue 4 Preview Page

Research Article

Design and Implementation of Infrared Image Generation Algorithm with Three-Dimensional Conjugate Heat Transfer

3차원 복합 열해석 기반 적외선 영상 생성 알고리즘 설계 및 구현

Hyun-Sung Jang1, Dong-Geon Kim2, Ku-Yong Kwon3, Nam-Koo Ha4

장현성1, 김동건2, 권구용3, 하남구4

1,4Chief Research Engineer, EO/IR R&D Lab, LIG Nex1
2,3Senior Research Engineer, EO/IR R&D Lab, LIG Nex1
1,4LIG넥스원 전자광학연구소 수석연구원
2,3LIG넥스원 전자광학연구소 선임연구원
31 December 2021. pp. 43-54
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Abstract
적외선 영상은 일반적인 가시광 영상에 비해 사용 가능한 데이터셋이 상대적으로 적을 뿐만 아니라 영상획득 비용도 높다. 따라서, 머신러닝이나 시뮬레이션 분야에서는 적외선 영상을 생성하여 활용하려는 연구가 활발하다. 본 논문에서는 정밀한 표면온도 계산을 바탕으로 실제와 유사한 적외선 영상을 생성하는 방안과 그 구현 결과를 제시하였다. 실제 물리적 수식을 기반으로 한 3차원 복합 열해석을 바탕으로 복잡한 형상의 차량에 대한 열해석을 수행하였고, 제시한 방안의 오차가 약 1% 정도로 매우 정밀함을 확인하였다. 이러한 정확한 표면온도와 BRDF 값을 이용한 표면의 방향별 반사율을 이용하여 적외선 영상을 생성하면, 실제 적외선 카메라로 촬영된 영상과 유사한 적외선 영상의 생성이 가능함을 구현 결과로 확인할 수 있었다.
Compared to general visible light images, infrared images have relatively few available data sets and also have high image acquisition costs. Therefore, in the field of machine learning or simulation, research to generate and utilize infrared images is active. In this paper, a method for generating infrared images based on precise surface temperature calculation and its implementation result are presented. Thermal analysis was performed on a vehicle with a complex shape based on a three-dimensional conjugate heat transfer analysis based on actual physical formulas, and it was confirmed that the error of the proposed method was about 1%. As a result of the implementation, it was confirmed that an infrared image similar to an image captured by an actual infrared camera can be generated when an infrared image is generated using the accurate surface temperature and BRDF (Bi-Directional Reflectance Distribution Function).
Keywords
Infrared image generation
Three-dimensional conjugate heat transfer analysis
Surface temperature
Bi-directional reflectance distribution function
MODTRAN
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Information
  • Publisher :The Society of Convergence Knowledge
  • Publisher(Ko) :융복합지식학회
  • Journal Title :The Society of Convergence Knowledge Transactions
  • Journal Title(Ko) :융복합지식학회논문지
  • Volume : 9
  • No :4
  • Pages :43-54
  • DOI :https://doi.org/10.22716/sckt.2021.9.4.042
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