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Matching Points Extraction Between Optical and TIR Images by Using SURF and Local Phase Correlation
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SURF와 지역적 위상 상관도를 활용한 광학 및 열적외선 영상 간 정합쌍 추출

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Type
Academic journal
Author
Han, You Kyung (Fondazione Bruno Kessler) Choi, Jae Wan (충북대학교)
Journal
Korea Spatial Information Society Journal of Korean Society for Geospatial Information Science Vol.23 No.1 KCI Accredited Journals
Published
2015.3
Pages
81 - 88 (8page)

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Matching Points Extraction Between Optical and TIR Images by Using SURF and Local Phase Correlation
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Various satellite sensors having ranges of the visible, infrared, and thermal wavelengths have been launched due to the improvement of hardware technologies of satellite sensors development. According to the development of satellite sensors with various wavelength ranges, the fusion and integration of multisensor images are proceeded. Image matching process is an essential step for the application of multisensor images. Some algorithms, such as SIFT and SURF, have been proposed to co-register satellite images. However, when the existing algorithms are applied to extract matching points between optical and thermal images, high accuracy of co-registration might not be guaranteed because these images have difference spectral and spatial characteristics. In this paper, location of control points in a reference image is extracted by SURF, and then, location of their corresponding pairs is estimated from the correlation of the local similarity. In the case of local similarity, phase correlation method, which is based on fourier transformation, is applied. In the experiments by simulated, Landsat-8, and ASTER datasets, the proposed algorithm could extract reliable matching points compared to the existing SURF-based method.

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1. 서론
2. 연구방법
3. 실험 적용 및 결과
5. 결론
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