Classical Photogrammetry Revisted
Let us start with the well known projective relationships
relating the terrain coordinates N,E,H, of point P to
image coordinates x,y of image (i).
E
Figure 1: The Projective Relationship
xp- C* a,*(Np-No) * a,*(Ep-Eo) 4 a,*(Hp-Ho) - Px( (Np,Ep,Hp)
a;*(Np-No) + a,*(Ep-Eo) * a,*(Hp-Ho)
ypÜ"- C* a,*(Np-No) + a.*(Ep-Eo) + a,*(Hp-Ho) = Py? (Np,Ep,Hp)
a,*(Np-No) + a,* (Ep-Eo) + a,* (Hp-Ho)
Where Px, Py" denote the projective operators.
In many applications, systematic image deformations are
present. These are image deformations, which are
dependent on the position of the image point and repeat
from image to image. The physical causes of these
deformations are atmospheric refraction, optical
aberration and deformation of the filmbase during
processing.
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