I. Introduction
- Thesis: The visual system has evolved to solve a specific problem
- Problem: Convey to brain, in a manner the brain can use, the nature of the
world as revealed by light.
- The way the visual system works depends upon how this problem is solved
and the constraints of the system
- i.e., different animals have very different visual experiences, depending
upon their needs
- e.g. cat and frogs
- Imaging systems have a similar problem to solve
- Imaging systems include the image capture device, e.g., the camera
below, and the image display, e.g., the monitor, and all of the associated
hardware
- The issues of imaging systems include both the constraints imposed by
the world, the hardware, and the visual system
- Sometimes it is impossible to meet all of these constraints
simultaneously
- This is one source of artifacts