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논문 기본 정보

자료유형
학술저널
저자정보
Oh, Jae Hong (Korea Maritime and Ocean University) Lee, Chang No (Seoul National University of Science and Technology)
저널정보
한국측량학회 한국측량학회지 한국측량학회지 제37권 제2호
발행연도
2019.4
수록면
55 - 62 (8page)

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초록· 키워드

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The stereo geometry establishment based on the precise sensor modeling is prerequisite for accurate stereo data processing. Ground control points are generally required for the accurate sensor modeling though it is not possible over the area where the accessibility is limited or reference data is not available. For the areas, the relative orientation should be carried out to improve the geometric consistency between the stereo data though it does not improve the absolute positional accuracy. The relative orientation requires conjugate points that are well distributed over the entire image region. Therefore the automatic conjugate point extraction is required because the manual operation is labor-intensive. In this study, we applied the method consisting of the key point extraction, the search space minimization based on the epipolar line, and the rigorous outlier detection based on the RPCs (Rational Polynomial Coefficients) bias compensation modeling. We tested different parameters of window sizes for Kompsat-2 across track stereo data and analyzed the RPCs precision after the bias compensation for the cases whether the epipolar line information is used or not. The experimental results showed that matching outliers were inevitable for the different matching parameterization but they were successfully detected and removed with the rigorous method for sub-pixel level of stereo RPCs precision.

목차

Abstract
1. Introduction
2. Methodology
3. Experiment
4. Conclusion
References

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