VR interactive environments for the blind

SPEAKER: Dr. Lorenzo Picinali

Wednesday 11th of January 2012 - 12pm


To watch the video of the seminar, use the following links:

High Quality  rtsp://helix.dmu.ac.uk/media2/76122333_hi.rm

Low Quality rtsp://helix.dmu.ac.uk/media2/76122333_lo.rm


Learning the configuration of a new space is a very important task, most of all when someone cannot rely on sight. Observing how blind individuals move inside a known environment (for example their house) it is possible to notice how they can navigate in different spaces without hitting walls and obstacles, how their movements are carefully calibrated, as if they were indeed able to see the surrounding space. Creating a mental representation of the environment is a prerequisite for orientation, and having access to this representation in the minds of blind and visually impaired individuals with high accuracy is highly important.

The process of creating such representation can be particularly long and complicated: blind individuals normally need to navigate within the space in particular conditions (usually silence) and for a certain number of times in order to build a mental map. Are we able to give them an easier way to learn the configuration of an environment they don’t already know?

Furthermore, people living with impaired vision need to rely upon other sensory inputs in order to learn the configuration of a new space: but is it true that their other senses, and in particular hearing, are heightened if compared with the ones of sighted people?

The presented research project asks two questions: how different are the spatial hearing mechanisms of blind individuals if compared with sighted ones? Is it possible to accurately model computationally [in a virtual reality (VR) space] the auditory cues used by blind individuals for understanding the configuration of an environment, in order to provide an easy mechanism for someone with visual impairment to learn the configuration of a new environment in advance of being introduced to it?