Fractals in pixellated video feedback

Johannes Courtial (), Jonathan Leach and Miles J. Padgett
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Johannes Courtial: University of Glasgow
Jonathan Leach: University of Glasgow
Miles J. Padgett: University of Glasgow

Nature, 2001, vol. 414, issue 6866, 864-864

Abstract: 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 pixel-based, and show that it can result in stationary fractal patterns such as von-Koch snowflakes and Sierpinski gaskets.

Date: 2001
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DOI: 10.1038/414864a

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