Ideal points and lines
Ideal point (“point
at infinity”)
•p @ (x, y, 0) – parallel to image
plane
•It has infinite image
coordinates
(sx,sy,0)
-y
x
-z
image
plane
Ideal line
•l @ (a, b, 0) – parallel to image plane
(a,b,0)
-y
x
-z
image
plane
•Corresponds to a line in the
image (finite coordinates)
–goes through image origin (principle point)
