id: 06317239
dt: j
an: 2014d.00645
au: Gao, Yuan; Wu, Shenyang; Bei, Yijie
ti: 3D model restoration from 2D satellite pictures by spherical geometry.
so: Math. Medley 39, No. 2, 14-20 (2013).
py: 2013
pu: Singapore Mathematical Society (SMS), Singapore
la: EN
cc: G90 M50
ut: satellite picture; spherical geometry; geographic coordinates; 3D model
restoration; radial distance
ci:
li:
ab: 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.
rv: