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Digital Photogrammetry Camera Boresight Calibration Using Ground Control Points
Digital Photogrammetry Camera Boresight Calibration Using Ground Control Points
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography. 2014. Aug, 32(4_1): 293-298
  • Received : May 27, 2014
  • Published : August 31, 2014
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Lee Yong Wook

Abstract
Recently, the direct georeferencing has been becoming a common method in the aerial photogrammetry. As this direct georeferencing method using converged sensor of the digital photogrammetry camera and GPS(Global Positioning System)/INS(Inertial navaigation System), more rapid and accurate aerial photogrammetry has improved following advanced performance in photogrammetry. Since the accuracy of EO parameters from the direct georeferencing is determined by GPS/INS accuracy, it is significant to calculate the exact attitude information using values of INS rotations. For following calculations, the misalignment, such as INS rotation and the gap of GPS/INS, has to be decided. Because the number of ground control points are used for tirangulation and boresight calibration, those results should be different according to array and location of ground control points. In the study, those location and array of ground control points were tested to be used boresight calibration. As a result, there is no significant change of misalignment and exterior orienation parameters in the case when ground control points were at all course. On the contrarily, the difference has been shown in the case of no ground control point at course.
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