Program item

33rd Color and Imaging Conference

Human Color Vision and Visual Processing and the Effects of Individual Differences

SC12

SIGNIFICANTLY UPDATED Human Color Vision and Visual Processing and the Effects of Individual Differences
Instructor: Andrew Stockman, University College London and Zhejiang University
Level: Intermediate
Duration: 4 hours
Prerequisites: None
Course Time: 8:30 - 12:45

Benefits
This course enables the attendee to:

Gain a broad overview of human color vision and visual processing from the eye’s optics to perception and understand its key properties and limitations.
Understand and model the causes of individual differences and their effects on observer metamerism for color reproduction using modern display devices.
Understand the limitations of the CIE 1931-based photometry and colorimetry and potential solutions.
Make informed decisions about the choices for sensors, color, and imaging pipelines, displays, and color reproduction.

Course Description
This course covers human color vision and visual processing, from the eye’s optics to color perception. Topics include physiological optics and light, the photoreceptor array, univariance and trichromacy, and the LMS photoreceptor spectral sensitivities and their links to color matching functions, photometry, and colorimetry. The course also explores cone-opponency (L–M, S–[L+M]), the encoding and processing of color signals into color-opponent (R–G, Y–B) and non-opponent (L+M) channels after the cone photoreceptors, and the neural processing of visual signals from the eye to the brain. Additional topics include color in the cortex, color after-effects, color constancy, color contrast and assimilation, color categories, and color cognition. The course includes illustrative demonstrations of visual effects and illusions. A particular focus is on individual differences in color vision and their effects on observer metamerism in modern display devices.

Intended Audience: any scientists and engineers with an interest in understanding more about human color vision and visual processing and how that knowledge can be applied..

Updates: Andrew Stockman is the Steers Professor at the UCL Institute of Ophthalmology and part-time Qiushi Chair Professor of Zhejiang University (ZJU). His research areas include color vision, rod vision, visual adaptation, and temporal sensitivity. He may be best known for his work with Ted Sharpe on spectral sensitivities and luminous efficiency. Stockman is the principal author of the widely-used color database at http://www.cvrl.org. He received the 2016 Colour Group Newton medal and 2018 Inter-Society Color Council Macbeth Award. Stockman is chair of new CIE TC1-104 committee set up for the “Verification of the physiologically-relevant CIE 2006 LMS cone fundamental CMFs and their linear transformation the 2015 XYZ CMFs.”