Optical Illusion in Which Line Segments Continue to Grow or Shrink by Displaying Two Images Alternately

Kazuhisa Yanaka, Sota Mihara

2024

Abstract

A new illusion has been discovered, wherein line segments, when alternately displayed with their tonal inversion or monochromatic images for approximately 120 ms each on a monochromatic background, seem to grow or shrink continuously. For instance, if the first image features black line segments on a white background and the second image shows the inverse brightness, switching between these two images causes the line segments to give the illusion of continuous expansion. Although a single line segment suffices, aligning multiple line segments parallel to each other enhances the effect of this illusion. This illusion can be achieved using achromatic colors, such as black and white, as well as chromatic colors, such as red, blue, and green. Specifically, when using an image with a black line segment on a red background alongside its brightness-inverted counterpart, the line segments appear to steadily decrease in length. Our hypothesis suggests a comparison between the mechanisms of this illusion and the changes in water volume in a pond.

Paper Citation

in Harvard Style

Yanaka K. and Mihara S. (2024). Optical Illusion in Which Line Segments Continue to Grow or Shrink by Displaying Two Images Alternately. In Proceedings of the 19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 3: VISAPP; ISBN 978-989-758-679-8, SciTePress, pages 737-740. DOI: 10.5220/0012462200003660

in Bibtex Style

@conference{visapp24,
author={Kazuhisa Yanaka and Sota Mihara},
title={Optical Illusion in Which Line Segments Continue to Grow or Shrink by Displaying Two Images Alternately},
booktitle={Proceedings of the 19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 3: VISAPP},
year={2024},
pages={737-740},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0012462200003660},
isbn={978-989-758-679-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 3: VISAPP
TI - Optical Illusion in Which Line Segments Continue to Grow or Shrink by Displaying Two Images Alternately
SN - 978-989-758-679-8
AU - Yanaka K.
AU - Mihara S.
PY - 2024
SP - 737
EP - 740
DO - 10.5220/0012462200003660
PB - SciTePress