Stereo photogrammetry from a single station using a surveying instrument with an eccentric camera
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United States of America Patent
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Apr 26, 2016
Grant Date -
Mar 5, 2015
app pub date -
Oct 24, 2014
filing date -
Feb 29, 2008
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Abstract
A method for determining, in relation to a surveying instrument, target coordinates of a point of interest, or target, identified in two images captured by a camera in the surveying instrument. The method comprises determining coordinates of the surveying instrument, capturing a first image using the camera in the first camera position; identifying, in the first image, an object point associated with the target; measuring first image coordinates of the object point in the first image; rotating the surveying instrument around the horizontal axis and the vertical axis in order to position the camera in a second camera position; capturing a second image using the camera in the second camera position; identifying, in the second image, the object point identified in the first image; measuring second image coordinates of the object point in the second image; and determining the coordinates of the target in relation to the surveying instrument.
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