Video Feedback Overview

Video feedback is the process of pointing a camera at the screen displaying the camera's output. This creates a feedback loop of images infinitely repeating onto and over themselves creating interesting patterns. An initial curious result has become a studied phenomena that relates to other sciences such as cellular automata, reaction diffusion and non-linear dynamics.

This page has information on simulating video feedback, examples of real video feedback and links to other websites with further information about video feedback.

Simulating video feedback

Here are some results from attempting to simulate video feedback created with Visions Of Chaos. See SimulatingVideoFeedback.pdf for more details.

This movie is a 7 minute compilation of the samples below. The source movie was rendered at DVD resolution and then converted to a 320x240 MPG for YouTube. This results in a more accurate representation of how the simulations look when run from a DVD player. The other samples below, rendered at 320x240, show a more "zoomed in" display of the simulations.

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Other attempts at simulating video feedback

Eugene Donev - Spatio-Temporal Dynamics in Video Feedback
University of Glasgow - Department of Physics & Astronomy - Optics Group - Fractal video feedback applet
Simulation of video feedback - Michael Cramer Andersen and Jesper Petersen
Dave Bollinger - Feedback applet
Dimitre Lima - Feedback Synthesizer

Examples of real video feedback

Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback Real Video Feedback

Video Feedback related links

Shawn Towne - Enhanced examples of video feedback
Paul Prudence - Talysis. More samples here
Tom Holroyd - Dr Tom's Video Feedback Gallery
Chaim Goodman-Strauss - Fractal Feedback
Peter Henry King - Video Feedback Fractal Genesis
David Hagar - Video Fractals
Jesper Petersen - Danish gallery of video feedback images
Ole Hyldgaard - Danish gallery of video feedback images
Harald Walker - MediaSculp
drupel - Flickr gallery of video feedback
psymon1962 - Flickr galery of long exposure video feedback
Wikipedia - Optical feedback
Michael Frame, Benoit Mandelbrot, and Nial Neger - Yale University's information on video feedback.
Mike Hall - The blob sessions. Also see his Acoustically enhanced video feedback.
Anja Franz - Oil paintings of video feedback
Joel Cadman - Spinning Lights. Also see here for more videos.

Scientific papers relating to Video Feedback

In depth and mathematical, but will be of interest to people who want a much more detailed description of video feedback.

Space-Time Dynamics in Video Feedback James P. Crutchfield
Spatio-Temporal Complexity in Nonlinear Image Processing James P. Crutchfield
Nonlinear Dynamics of video feedback Timothy Burt and Michael G. Lagoudakis
Farey sequences of spatiotemporal patterns in video feedback B. Essevaz-Roulet, P. Petitjeans, M. Rosen, and J. E. Wesfreid

Did I miss anything?

If you know of any other websites or papers related to video feedback contact me.