THE SIXTH SENSE TECHNOLOGY

The conference TED (the name stands for Technology, Entertainment, Design) the guys from the Massachusetts Institute of Technology revealed something unbelievable, a working prototype of a multifunctional device that can become part of our lives in five years to ten. Set named “sixth sense” consists of only wearing colorful caps, perceived by a multifunctional device.It is a wearable gestural interface device by Pranav Mistry, a PhD candidate in the Fluid Interfaces Group at the MIT Media Lab. 

The SixthSense prototype comprises a pocket projector, a mirror and a camera contained in a pendant-like, wearable device. Both the projector and the camera are connected to a mobile computing device in the user’s pocket. The projector projects visual information enabling surfaces, walls and physical objects around us to be used as interfaces; while the camera recognizes and tracks users' hand gestures and physical objects using computer-vision based techniques. The software program processes the video stream data captured by the camera and tracks the locations of the colored markers (visual tracking fiducials) at the tips of the user’s fingers. The movements and arrangements of these fiducials are interpreted into gestures that act as interaction instructions for the projected application interfaces. SixthSense supports multi-touch and multi-user interaction.

The SixthSense prototype contains a number of demonstration applications.

• The map application lets the user navigate a map displayed on a nearby surface using hand gestures to zoom and pan
• The drawing application lets the user draw on any surface by tracking the fingertip movements of the user’s index finger.
• SixthSense also implements Augmented reality; projecting information onto objects the user interacts with. For example a paper newspaper can be augmented with projected dynamic live information.

A 'framing' gesture takes a picture of the scene. The user can stop by any surface or wall and flick through the photos he/she has taken.The system recognizes a user's free hand gestures as well as icons/symbols drawn in the air with the index finger, for example:

• Drawing a magnifying glass symbol takes the user to the map application while an ‘@’ symbol lets the user check his mail.
• The gesture of drawing a circle on the user’s wrist projects an analog watch.

SixthSense prototypes cost approximately $350 to build (not including the computer), the main cost being the micro-projector. Mistry had announced in Nov 2009 that the source code will be released under Open Source. The open source code for the project can be found at SixthSense Google Code and SixthSense Github Repo.

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