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3D model restoration from 2D satellite pictures by spherical geometry. (English)
Math. Medley 39, No. 2, 14-20 (2013).
From the introduction: Satellites are widely used nowadays. In the case of visible-light satellite pictures, the surface of the Earth is projected to a 2D image. During this projection, information such as a uniform scale is lost. For example, points that are 1\,cm apart in the picture may correspond to varied distances due to the projection. Thus, we cannot get the distance between two points or geographic coordinates of points by direct measurement. In this essay, we found a way to rebuild the detected part of the 3D Earth surface from any 2D images by finding the geographic coordinates of any point in the picture.
Classification: G90 M50
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