Lumitrack is a motion capture technology developed by Robert Xiao, Chris Harrison, and Scott Hudson at Carnegie Mellon University. It combines projectors and sensors to provide high fidelity motion tracking. These types of sensors are used in video game controllers, such as Microsoft Kinect, and in motion capture for film and television production.
Although Lumitrack's current research prototype uses visible light, it can be adapted to utilize invisible infrared light. According to the university, the sensor requires less power and should be cheap to mass-produced. They can even be built into smartphones.
Video Lumitrack
Technology
The projector covers a traced area with a structured pattern called a m-binary sequence that resembles a barcode. A series of bars encodes a series of various vertical lines of varying thickness, without repeating the combination of seven different types of contiguous lines anywhere in the projected image. The sensor reads the bar to assess movement. The initial implementation offers sub-millimeter accuracy. When two m-sequences are projected at right angles to each other, the sensor can determine its position in two dimensions; while additional sensors enable 3D tracking.
These sensors are simple to produce and require less power and feature response time in the range of 2.5 milliseconds, making them candidates for inclusion to other devices, such as telephones. The sensor can be attached to a traceable object or to a fixed object such as a wall.
Maps Lumitrack
Apps
The developers are targeting the video game as the initial app. Other possibilities include CGI for film and television and human-robot interaction.
References
External links
- "Lumitrack". Chris Harrison . Retrieved 2013-10-09 .
Source of the article : Wikipedia
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