Imagine
you are taking a picture with your camera
- Objects
in the room may be best described in a local coordinate system unique to each
object
- They
also have position and orientation in the world
- Your
camera also has a position and orientation, which determines where it is
looking
- Your
camera has settings, such as size, field of view, and resolution, which help
define how the final picture is rendered
The synthetic camera model used in
computer graphics mimics this process, using
transformations
between different
coordinate systems to
render an image. These transformations
are implemented using matrices.