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Proceedings Paper

Making operations with superimposed black-and- white and color transparencies: Does quasi-moire pattern observation suggest two forms to correlate retinal visual signals?
Author(s): Mario Garavaglia; Pablo F. Meilan
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Paper Abstract

This paper deals with the visual observation of quasi-moire patterns or glass patterns generated when an original black and white 2D transparency is superposed onto a copy of itself, and coplanarly rotated. Patterns are also observed if one of the transparency is the scaled-up or -down replica of the original one. Also, patterns are observed if different scaling factors are applied in different directions. Besides, the quasi-moire patterns are observed when one of the transparencies is skewed. Circular, elliptic, parabolic, hyperbolic, radial lines, and logarithmic spirals quasi-more patterns are observed. Also quasi-moire patterns observation is extended to color regions. Finally, the observation of black and white, and false color or gray contrasted quasi-moire patterns could suggest two forms to correlate retinal visual signals.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437169
Show Author Affiliations
Mario Garavaglia, Univ. Nacional de La Plata and Ctr. de Investigaciones Opticas (Argentina)
Pablo F. Meilan, Univ. Nacional de La Plata and Ctr. de Investigaciones Opticas (Argentina)


Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications

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