Custom Search

Pervasive TPVM coming

Friday 13th January 2012
TPVM allows many users to interact with the same virtual world and at the same time enjoy each other’s physical presence (e.g., surfing together), which is impossible with HMD. A bulk of imaging computations off-loaded from HMD (electronic) to HSV (biologic), making user-worn viewing apparatus much simpler, lighter and far less expensive. Courtesy: http://www.ece.mcmaster.ca/~xwu/

Canada's interactive entertainment strengths, with a host of other applications, take a step forward with a new technology Temporal PsychoVisual Modulation (TPVM) developed by Professor Xiaolin Wu and Guangtao Zhai at Mc Master University, where a single 3D display screen can show multiple image streams, which the viewers can choose, using a controller and LCD glasses.

"TPVM allows concurrent multiple self-intended exhibitions via a common display medium, an optoelectronic-psychovisual process modelled by non-negative matrix factorisation. Different images are perceived by different viewers whose LC glasses modulate the same sequence of atom frames differently," explains (right) Professor Wu.

Displays  are capable of showing images at a rate of 240 per second or more, LCD glasses matching this rate, but the human visual system only processing images at a rate of about 60Hz, which allows several image streams to be displayed and separately viewed at the same time.

Technically this wil reduces the amount of real-time processing needed. Headmounted glasses only needed to synchronise with a specific subset of images based on the user's choice or head movement.

Obvious applications will be in gaming, virtual tourism,  surgery and reports Technology Review, Wu and Zhai have also identified interesting security applications, scrambling images into several streams to reassemble them through encrypted LCD glasses,  or scrambling the keys to prevent on onlooker evesdropping a user's pin number.
 

Scotland, Computer News in Scotland, Technology News in Scotland, Computing in Scotland, Web news in Scotland computers, Internet, Communications, advances in communications, communications in Scotland, Energy, Scottish energy, Materials, Biomedicine, Biomedicine in Scotland, articles in Biomedicine, Scottish business, business news in Scotland.

Website : beachshore