OUTLIER DETECTION AND RELATIVE RPC MODIFICATION OF SATELLITE STEREO IMAGES USING RANSAC+RPC ALGORITHM

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TATAR NORRALLAH; SAADATSERESHT MOHAMMAD; AREFI HOSSEIN

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Journal: ENGINEERING JOURNAL OF GEOSPATIAL INFORMATION TECHNOLOGY Year:2016 | Volume:4 | Issue:3 Page(s): 43-56

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Title

OUTLIER DETECTION AND RELATIVE RPC MODIFICATION OF SATELLITE STEREO IMAGES USING RANSAC+RPC ALGORITHM

Author(s)

TATAR NORRALLAH | SAADATSERESHT MOHAMMAD | AREFI HOSSEIN | Issue Writer Certificate

Keywords

RATIONAL POLYNOMIAL COEFFICIENTS (RPC)Q2

RPC MODIFICATIONQ2

SATELLITE STEREO IMAGERYQ2

RANSAC+RPCQ2

OUTLIER DETECTIONQ2

Abstract

Satellite image providers usually present Rational Polynomial Coefficients (RPCs) as a user friendly solution for georeferencing of images. As RPCs are determined independently for each image scene, there are both absolute and relative georeferencing biases will in stereo scenes. Relative orientation of a stereo scene needs some conjugate image points. Speeded up robust features (SURF) operator is a powerful computer vision algorithm for image feature extraction and matching. Usually some of the features are not actually matched and are outliers. In this paper RANSAC+RPC algorithm is employed to simultaneously detect these outliers and modify the relative bias of RPCs. Our experiments on GeoEye-1 over Qom city and IRS-P5 over Rudehen district, both in central Iran, demonstrated the capability of our proposed algorithm. Though the RPC MODIFICATION was done robustly for relative orientation of stereo scenes, yet improvement in the reconstructed 3D coordinates are in the range of sub-pixel accuracy. Our experiments demonstrate that the relative RPC shift and drift error will not cause any accuracy improvement in 3D reconstruction problem.

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APA: Copy

TATAR, NORRALLAH, SAADATSERESHT, MOHAMMAD, & AREFI, HOSSEIN. (2016). OUTLIER DETECTION AND RELATIVE RPC MODIFICATION OF SATELLITE STEREO IMAGES USING RANSAC+RPC ALGORITHM. ENGINEERING JOURNAL OF GEOSPATIAL INFORMATION TECHNOLOGY, 4(3), 43-56. SID. https://sid.ir/paper/230174/en

Vancouver: Copy

TATAR NORRALLAH, SAADATSERESHT MOHAMMAD, AREFI HOSSEIN. OUTLIER DETECTION AND RELATIVE RPC MODIFICATION OF SATELLITE STEREO IMAGES USING RANSAC+RPC ALGORITHM. ENGINEERING JOURNAL OF GEOSPATIAL INFORMATION TECHNOLOGY[Internet]. 2016;4(3):43-56. Available from: https://sid.ir/paper/230174/en

IEEE: Copy

NORRALLAH TATAR, MOHAMMAD SAADATSERESHT, and HOSSEIN AREFI, “OUTLIER DETECTION AND RELATIVE RPC MODIFICATION OF SATELLITE STEREO IMAGES USING RANSAC+RPC ALGORITHM,” ENGINEERING JOURNAL OF GEOSPATIAL INFORMATION TECHNOLOGY, vol. 4, no. 3, pp. 43–56, 2016, [Online]. Available: https://sid.ir/paper/230174/en

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