Points of reference
We know both Euclidean and projective coordinates of the
points of reference:
;
(
).
Projective transformation matrix
Matrix is a
matrix:
where is an arbitrary scalar because
is defined
up to a scale factor.
Equation
Letting
and eliminating
give
with
Solution
minimizing the following error function:
subject to .
The solution is the eigenvector of
associated to the smallest eigenvalue.
Author: Zhengyou Zhang
Email: zzhang@sophia.inria.fr