Exterior Orientation Parameters
نویسنده
چکیده
The georeference of any photogrammetric product is based on the reconstruction of the geometric relations of imaging in a chosen object coordinate system. For the handling of aerial photos traditionally the bundle of rays from the image points over the projection center to the ground points is modelled by means of the camera calibration information and the exterior orientation determined by means of control points. Today the time consuming ground survey of control points can be reduced by block adjustment or even more by combined block adjustment with projection center coordinates from relative kinematic GPS-positioning. It is also possible to avoid control points like the measurement of image coordinates of tie points by direct sensor orientation with a combination of GPS and an inertial measurement unit (IMU).
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