The approach taken in this research is to develop a cognitive model of how a human observer extracts information from a visual display and then uses this perceptual information in a decision-making task. Knowledge about this relationship provides information about the occurrence of perceptual events in the course of problem-solving activities, and suggests that perceptual assistance in the form of image enhancements is a useful supplement to the user's own abilities. This knowledge is then to be embedded in an intelligent computerized assistant which is designed to facilitate and simulate the human problem-solving process.
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