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Application of Multi-Frame Based Super-Resolution Algorithm for a Color Recognition Enhancement for the UAV

복수영상기반 초해상도 색상인식능력향상 알고리즘의 무인기 적용

  • Park, Jihoon (Department of Aerospace Engineering, Busan National University) ;
  • Kim, Jeongho (Department of Aerospace Engineering, Busan National University) ;
  • Lee, Daewoo (Department of Aerospace Engineering, Busan National University)
  • Received : 2017.02.03
  • Accepted : 2017.02.27
  • Published : 2017.03.01

Abstract

This paper describes the application of Multi-frame based super-resolution method to enhance resolution of image information from the UAV, and the improvement of UAV's ground target recognition ability. To verify this algorithm, we designed a flight/ground control system, and the UAV, and then the algorithm was validated using the UAV system with ground target. As a result of the comparison between the pre-applied image and post-applied one shows that the RMSE is from 0.0677 to 0.0315, NRMSE is from 7.4030% to 3.5726%, PSNR is from 23.3885dB to 30.0036dB, and SSIM is from 0.6996 to 0.8948. Through these results, we validate this study can enhance the resolution of UAV's image using Multi-frame based super-resolution algorithm.

본 논문은 무인기를 통해 획득한 영상정보의 해상도를 향상시키기 위해 복수영상 기반 초해상도 기법을 적용하고, 이를 통한 무인기의 지상 목표물 인식 능력 향상에 대한 내용을 담고 있다. 이를 검증하기 위해 기체 제작 및 제어 시스템을 구축하였고, 무인기와 지상의 목표물을 이용해 설계한 알고리즘을 검증하였다. 실험 결과 초해상도 기법 적용 전, 후 영상을 비교하였을 때 RMSE는 0.0677에서 0.0315, NRMSE는 7.4030%에서 3.5726%로, PSNR은 23.3885dB에서 30.0036dB, SSIM은 0.6996에서 0.8948로 향상되었음을 확인하였다. 이를 통해 본 알고리즘을 적용하여 무인기 영상의 해상도를 향상시킬 수 있음을 검증하였다.

Keywords

References

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