Harmonic oscillator model of early visual image processing

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Abstract
To characterize how the human visual system responds to spatial patterns, a 'black box' method was adopted, in which visual evoked potentials (VEPs) were taken as outputs and visual patterned stimuli were taken as inputs. The stimuli were gratings whose function profiles were weighted Hermite polynomials (WHPs). A model, mathematically analogous to harmonic oscillators in quantum mechanics, was developed to describe the black box and the quantitative relationships between the VEPs and the WHPs.

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