Viewing Systems

Synthetic Camera Model

We assume that the center of the projection plane is at the origin and that the center of projection, also called the eye point, is located along the negative z-axis an amount d so that d is a negative number.

Using similar triangles again, we can write (y_p)/y = −d/(z−d)

so

yp = − y (z − d) / d

and

xp = − x (z − d) / d