Infrared trackers are sometimes called optical trackers. They are one of five discrete kinds of tracker used for 3D positioning in VR hardware. Worn light reflectors are used, together with fixed camears to receive reflected light. If enough are used, it does not matter if some are occluded by body parts.
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A demonstration of both the use of a Wii-mote as a cheap head tracker, and a demonstration of head tracking, rarely recorded
Mimi Switch, a Japanese muscle monitoring device, has an interesting premise. It looks like a normal set of headphones but is fitted with a set of infrared sensors that measure tiny movements inside the ear that result from different facial expressions.
An early commercial electromagnetic tracker system that surfaced in of all places, the arcade machines of 2002.
The Trazer by Cybex Incorporated. Billed as a virtual reality exercise machine, this $6,495 USD (?3,300) machine tracks an infrared belt worn by the exerciser, and uses changes in the position of that, and senses of increase or decrease in heat rate, to determine how much they are exercising.
After the events at Virginia Tech University in the US, in April, a major push at using wearable technologies and sensor webs to improve student safety has been underway.
Neuroprosthetics along with less invasive brain machine interfaces have really gone from strength to strength over the past decade. However, all of them are still detecting or modifying signals that are electrical in nature, whilst the brain itself is electrochemical. Now, from a rather unlikely source, comes the first evidence that a chemical detector and tracker is actually possible inside a complex multicellular structure.
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A new real-time surgical imager developed by John Frangioni, a physician at Beth Israel Deaconess Medical Centre in Boston, is capable of making tumourous tissue glow, in real-time, in the operating room.
The imager, which is...
Louisiana Immersive Technologies Enterprise, or LITETM has installed three separate, interlinked IS-900 wireless motion tracking systems in the 3D Immersive Visualisation Total Immersion System (TIS) it runs.
This makes the...
Scott Bunce of Drexel University's College of Medicine proposes to send near-infrared light through the skull into the brain and measure the amount reflected back (depends on levels of oxygen in the blood) to determine brain activity, at h...
Flexible displays that are bigger, brighter, and cheaper could be made using a new approach that involves exciting fluorescent chemicals embedded in the screen with an infrared laser.
The new approach, developed by researcher...
Researchers have found a way to let molecular imaging that uses near-infrared light peer deeper into the body.Fluorescent-protein tags can be made to target just about any biological protein, be it an enzyme that helps cancer cells advance ...