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Preserves straight lines and
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Basics of Projective Geometry
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Projective basis
Collineations
The invertible transformation
is called a
projective transformation
or
collineation
or
homography
or
perspectivity
and is completely determined by
point correspondences.
Properties:
Subsections
Preserves straight lines and cross ratios
Illustration of perspectivity
Projective mappings of lines and conics in
The affine subgroup
The Euclidean subgroup
Decomposition of a projective transformation
Affine calibration of a plane
Euclidean calibration of a plane
How to compute a homography
Subhashis Banerjee 2008-01-20