Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
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A Study on Automatic Detection of the Gross Errors on DSM Using Stereo Image Analysis

스테레오 영상분석에 기반한 DSM 과대오차영역의 자동검출기법연구

  • Jeong, Jaehoon (Department of Geoinformatic Engineering, Inha University) ;
  • Kim, Taejung (Department of Geoinformatic Engineering, Inha University)
  • 정재훈 (인하대학교 지리정보공학과) ;
  • 김태정 (인하대학교 지리정보공학과)
  • Received : 2013.08.28
  • Accepted : 2013.10.12
  • Published : 2013.10.31
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Abstract

In this paper, a method of using high resolution stereo images is proposed to efficiently detect DSM errors. Automatically generated DSMs from stereo matching can be a useful solution to acquire DSM data in various aspects but they may include many gross errors coming from automatic processing. Therefore, a method to detect the gross errors on DSM is required for efficient DSM update. In this paper, stereo analysis using high resolution stereo images was investigated to represent reliability of DSM grids. The analysis enabled automatic detection of the gross errors which greatly influenced DSM quality. We used the reference DSM to assess reliability of our proposed method. We confirmed from experimental results that our method can be a valuable DSM errors analysis for efficient DSM correction. Our method is useful to analyze and improve DSM accuracy for various types of DSM and DEM. It is expected that our approach can be exploited for achievement of reliable DSM and DEM.

본 연구에서는 고해상도 스테레오 영상분석에 기반하여 DSM에 존재하는 오차들을 효율적으로 검출하는 기법을 제시한다. 스테레오 영상정합을 통한 DSM 자동생성은 여러 가지 측면에서 DSM 확보를 위한 유용한 방법이 될 수 있는데, 자동생성 과정에서 발생하는 과대오차들을 포함하고 있어 이를 개선하기 위한 효율적 검출 방법이 필요하다. 본 연구에서는 고해상도 스테레오 영상을 활용한 상관계수 분석 기법을 적용하여 DSM의 모든 격자의 신뢰도를 나타낸다. 제안 기법을 적용하면, DSM 정확도에 치명적인 영향을 주어 우선적으로 보정이 요구되는 과대오차 지역을 자동으로 검출할 수 있다. 해당 지역의 참값 DSM을 활용하여 제안기법의 신뢰성을 확인하였으며 실험결과로부터 제안기법이 효율적인 DSM 보정을 위한 유용한 DSM 오차분석 기법이 될 수 있음을 확인하였다. 제안된 기법은 다양한 DSM 및 DEM 자료의 오차분석에 활용이 가능하며 따라서, 신뢰성 있는 DSM 및 DEM 확보에 유용하게 활용될 수 있을 것으로 기대한다.

Keywords

References

  1. Lee, S.W., and H.S. Oh, 2004. Evaluation of Digital Elevation Models by Interpreting Correlations, The KIPS transactions, 11(2): 141-148. https://doi.org/10.3745/KIPSTB.2004.11B.2.141
  2. Rhee, S., J. Jeong, and T. Kim, 2009. DEM Generation from Kompsat-2 images and Accuracy Comparison by Using Common Software, Korean journal of remote sensing, 25(4): 359- 366 (in Korean with English abstract). https://doi.org/10.7780/kjrs.2009.25.4.359
  3. Rhee, S., J. Jeong, T. Lee, and T. Kim, 2011. DEM Generation and Accuracy Comparison from Multiple Kompsat-2 Images, Korean journal of remote sensing, 27(1): 51-58 (in Korean with English abstract). https://doi.org/10.7780/kjrs.2011.27.1.051
  4. Jeong, J. and T. Kim, 2009. Comparison of Orbitattitude Model between Spot and Kompsat-2 imagery, Korean journal of remote sensing, 25(2):133-143 (in Korean with English abstract). https://doi.org/10.7780/kjrs.2009.25.2.133
  5. Dial, G., H. Bowen, F. Gerlach, J. Grodecki, and R. Oleszczuk, 2003. Ikonos satellite, imagery, and products, Remote Sensing of Environment, 88(1/2): 23-36. https://doi.org/10.1016/j.rse.2003.08.014
  6. Rhee, S. and T. Kim, 2011. DEM generation and accuracy analysis from high resolution satellite images through a 3D correlation matching algorithm, Proc. of 2011 International Symposium on Remote Sensing, Yeosu, Nov. 2-4, pp. 608-611.
  7. Radhika V.N., B. Kartikeyan, K. B. Gopala, S. Chowdhury and P. K. Srivastava, 2007. Robust Stereo Image Matching for Spaceborne Imagery, IEEE Transactions on Geoscience and Remote Sensing, 45(9): 2993-3000. https://doi.org/10.1109/TGRS.2007.898238
  8. Reinartz P., R. Muller, M. Lehner and M. Schroeder, 2006. Accuracy analysis for DSM and orthoimages derived from SPOT HRS stereo data using direct georeferencing, ISPRS Journal of Photogrammetry & Remote Sensing, 60(3):160-169. https://doi.org/10.1016/j.isprsjprs.2005.12.003
  9. Tong, X., S. Liu, and Q. Weng, 2010. Bias-corrected rational polynomial coefficients for high accuracy geo-positioning of QuickBird stereo imagery, ISPRS Journal of Photogrammetry & Remote Sensing, 65(2): 218-226. https://doi.org/10.1016/j.isprsjprs.2009.12.004
  10. Toutin T., 2006. Generation of DSMs from SPOT-5 intrack HRS and across-track HRG stereo data using spatiotriangulation and autocalibration, ISPRS Journal of Photogrammetry & Remote Sensing, 60(3): 170-181. https://doi.org/10.1016/j.isprsjprs.2006.02.003
  11. Vassilopoulou, S., L. Hurni, V. Dietrich, E. Baltsavias, M. Pateraki, E. Lagios and I. Parcharidis, 2002. Orthophoto generation using Ikonos imagery and high-resolution DEM: a case study on volcanic hazard monitoring of Nisyros Island (Greece), ISPRS Journal of Photogrammetry & Remote Sensing, 57(1-2): 24-38. https://doi.org/10.1016/S0924-2716(02)00126-0