Don retired at the end of 2021 and accepted a Adjunct Fellow position at UTS which allows him to continue to contribute in a limited capacity to the supervision and mentoring of students and to various research projects, focusing on image and video processing and analysis, data science, 3D capture and 3D printing.

Don received a Ph.D. in physics from ANU in 1988 and worked at ANU for a couple of years developing optical diagnostics for hyper-velocity flows. During his Ph.D. and in subsequent years he developed or helped develop several seminal methods in fringe analysis which have important applications in interferometry, structured light and x-ray phase contrast imaging. For most of his career he has worked on image and video processing problems, working in and later leading and managing small teams in Government and Industry research organisations (CSIRO, Mediaware Solutions Pty Ltd, CiSRA), though he has interspersed this with other activities doing contract research and starting and operating several businesses (Dynamic Stationary Pty Ltd, Advanced Image Research Pty Ltd, Sagacity Games, Wirriga Pty Ltd, Draco Scientific Pty Ltd, Afternoonified).