Simulation of the neon spreading effect by bandpass filtering

Zhiheng Wang; Jianrong Li; Haifeng Wan; Yuchuan Fu

doi:10.1117/12.150960

27 August 1993 Simulation of the neon spreading effect by bandpass filtering

Zhiheng Wang, Jianrong Li, Haifeng Wan, Yuchuan Fu

Proceedings Volume 1961, Visual Information Processing II; (1993) https://doi.org/10.1117/12.150960
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

The neon spreading effect has been attentive since the 1970s. It was assumed this kind of illusory spreading of color, resembling the diffuse light that issues from a glowing neon tube, was some stage in one's visual system where a physical process introduces an error. In this paper, the experimental results showed that the brightness difference between grids and crosses was the prior condition for the neon spreading to appear. We proposed that this kind of illusion was the result of the visual image processing, and could be interpreted by bandpass filtering which involved the filters of several spectral widths. The computer simulation on the neon-spreading effect by Gaussian filtering also helps the proposal.

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Zhiheng Wang, Jianrong Li, Haifeng Wan, and Yuchuan Fu "Simulation of the neon spreading effect by bandpass filtering", Proc. SPIE 1961, Visual Information Processing II, (27 August 1993); https://doi.org/10.1117/12.150960

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KEYWORDS

Neon

Bandpass filters

Optical filters

Visualization

Image filtering

Computer simulations

Visual system

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