Organized by Donald Mastronarde, Professor of the Graduate School, Emeritus Melpomene Distinguished Professor of Classical Languages and Literature
Vision Science is one of those areas where basic research and translational science (the application of the newest discoveries to clinical practice or other real-world applications) go hand in hand. This series highlights a number of fascinating topics pursued in Berkeley’s School of Optometry and Vision Science Program.
Perceptual Bases for Rules of Thumb in Photography
Martin S. Banks, Professor of Optometry and Vision Science
Tuesday, August 25, 2 pm Zoom
Recording available soon
Pictures (photographs, computer-graphic images, PowerPoint slides) are widely used in society to convey information. Professor Banks will discuss three perceptual phenomena associated with picture viewing. 1) Why viewing pictures from the wrong place (e.g., too far to the side) has little perceptual effect, and sometimes why viewing pictures from the right place leads to perceived distortions. 2) Why depth-of-field blur affects the perceived scale of a scene. Too much blur makes scenes look small. Too little makes them look large. 3) Why different lens focal lengths affect the perceived depth in a picture. Short lenses make depth look expanded. Long lenses make it look compressed. Professor Banks will argue that the three phenomena can only be understood from an analysis of the underlying geometry in image formation, from knowledge of viewing habits, and from knowledge of perceptual mechanisms that have clear value in the natural environment. These observations lead to suggestions on how best to construct pictures to facilitate the creator’s intent.
The Potential to Improve Vision with Augmented Reality
Emily Cooper, Assistant Professor in School of Optometry; affiliated with Vision Science Program and Helen Wills Neuroscience Institute
Tuesday, December 8, 2pm Registration opens in the fall
Today, an estimated 6 million adults in the United States have a visual impairment. The vast majority of these people are not completely blind: they have functional residual vision that they use in their daily life. Can emerging augmented reality technologies be used to provide visual assistance to people with vision loss? Professor Cooper will present work assessing several augmented reality paradigms aimed at assisting key visual functions, such as recognizing objects and navigating buildings.