In digital environments, colour is used for many purposes: for example, to encode information in charts, signify missing field information on websites, and identify active windows and menus. However, many people have inherited, acquired, or situationally-induced Colour Vision Deficiency (CVD - commonly called colour blindness), and therefore have difficulties differentiating many colours. Recolouring tools have been developed that modify interface colours to make them more differentiable for people with CVD, however these tools rely on models of colour differentiation that do not represent the majority of people with CVD. As a result, existing recolouring tools do not help most people with CVD. To address this, I developed Situation-Specific Modelling (SSM), and applied it to colour differentiation to develop the Individualized model of Colour Differentiation (ICD). In this talk, I will describe the iterative development of the ICD, and its application to obtain a user-specific recolouring tool. If I don't take too long doing that, I will also discuss three of my more recent projects: augmented reality personalized simulations of CVD, user-adaptable techniques for environmental colour identification, and high-resolution actuated displays for exploring and modifying visual information.
David Flatla is a Dundee Fellow in the School of Computing at the University of Dundee in Scotland. He received his PhD in Computer Science from the University of Saskatchewan, where he was supervised by Carl Gutwin. David's research explores the intersection of human colour perception and digital interfaces, where he models the unique abilities of individual users and adapts interfaces accordingly. His current research focusses on re-evaluating previous assistive technologies designed to support people with colour vision deficiency to identify gaps where more effective assistance can be provided. David's previous work has received Best Paper awards from CHI and ASSETS, and he received the Canadian Governor General's Gold Medal for his PhD work.