ABSTRACT
This chapter introduces the limits and characteristics of human vision in order to elucidate a variety of the requirements needed for video display. It presents a basic outline of some of the psychophysical aspects of vision focusing on color vision, spatial vision, and temporal vision. The perceptual salience of many geometric visual illusions is severely diminished or eliminated when they are reproduced using isoluminant patterns due to this loss of high spatial frequency information. The multiresolution representation theory postulates independence among the various spatial frequency and orientation channels that are analyzing the visual scene. A chromaticity diagram is useful for specifying color and determining the results of additive color mixing. Computational analysis has been the dominant paradigm for the study of visual processing of form information in the cortex replacing a more qualitative study based on identifying the functional specialization of cortical modularity and feature detection in cortical neurons.
