Calibrating Color Vision

Michael Webster, Professor, Cognitive and Brain Sciences, Department of Psychology, University of Nevada, Reno.

In January 2008, the Colour Group of Great Britain welcomed Professor Michael Webster back to give a Keynote lecture which was proudly sponsored by Cambridge Research Systems. The lecture features some fascinating research from Professor Webster and can be viewed again with slides and audio by clicking the link below.

Click here to view the lecture

Click the above image to view the slides, and listen to Mike Websters’s talk, which was recorded live. The talk is about 60 minutes long. This presentation has been converted into a Flash file and uses streaming technology, so that you can start watching without waiting for the entire file to download. The presentation will open in a new window and run from start to end automatically, or you can use the controls in the top right corner to pause and navigate from slide to slide if you prefer. Don't forget to turn on your speakers!

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Abstract

To reliably signal properties of the world, color vision must be compensated for variations in the spectral sensitivity of the visual system. We have examined the nature of these compensatory processes and how they correct for the perception of white across the visual field, the perception of contrast across different directions in color space, and the perception of hue as saturation varies. Each of these cases suggests that color appearance is calibrated to match the color statistics of the environment, and point to the possible stimulus attributes that color conveys.

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