Projective geometry for Computer Vision

Projective basis
Projective basis: A projective basis for P n is any set of n + 2
points no n + 1 of which are linearly dependent.
Canonical basis:
⎡ ⎤ ⎡ ⎤ ⎡ ⎤ ⎡ ⎤
1 0
0 1
0
⎢ ⎥
⎣ . ⎦ , 1
⎢ ⎥
⎣ . ⎦ , . . .
0
⎢ ⎥
⎣ . ⎦ ,
1
⎢ ⎥
⎣ . ⎦
0 0
1 1
} {{ } } {{ } } {{ }
points at infinity along each axis origin unit point
Subhashis Banerjee
Projective geometry for Computer Vision