Analysis of Noise-Required Contrast and Modulation in Image-Detecting and Display Systems
The purpose of an electrooptical display system is to convert electrical messages into luminous messages for transmittal to the retina of the eye. In the retina photodetection occurs and the signal processing is initiated which, continued in the brain, permits the observer to make decisions based on the acquired visual sensory information. The overall performance of this display-observer system is measured by the probability of the observer making a correct decision in a given visual task. Clearly the overall performance depends on the interaction between the parameters of the display and eye and on the parameters of the human visual system as well as on the parameters of the display itself. Therefore the choice of display design parameters to ensure optimum overall performance depends on a clear understanding of the operation of the visual sensory system and the interaction between it and the display.
KeywordsVisual System Detection Probability Point Spread Function Test Pattern Human Visual System
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