Image Processing: Fractals in pixellated video feedback

Courtial, J. , Leach, J. and Padgett, M.J. (2001) Image Processing: Fractals in pixellated video feedback. Nature, 414(6866), p. 864. (doi: 10.1038/414864a)

Abstract

Video feedback occurs whenever a video camera is directed at a screen displaying the image currently being recorded by the camera. It can be observed in everyday situations, for example at sporting events when a stadium’s display screen comes into the camera’s view. Here we consider how this simple physical process is affected by the fact that monitors are pixelbased, and show that it can result in stationary fractal patterns such as von-Koch snowflakes and Sierpinski gaskets.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Courtial, Dr Johannes and Padgett, Professor Miles and Leach, Mr Jonathan
• Authors: Courtial, J., Leach, J., and Padgett, M.J.
• Subjects: Q Science > QA Mathematics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Nature
• Publisher: Nature Publications Group
• ISSN: 0028-0836
• Copyright Holders: © 2001 Macmillan Magazines Ltd
• First Published: First published in Nature 414: 864 (20/27 December 2001)
• Publisher Policy: Reproduced with the permission of the Publisher.