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INTRODUCTION•This technology was developed by Pranav Mistry.
•An extrasensory perception.
•Sixth sense is a wearable gestural interface device.
•It is named sixth sense as it recognizes objects around us and give information about them.
REQUIREMENTS• Mirror• Wearable Camera• Pocket Projector• Internet enabled Smart phone• Colored markers
Wearable camera•It captures an object in view and tracks the user’s hand gestures.
•It acts like a digital eye, connecting you to the world of digital information.
Pocket projector•It Projects visual information & enables surfaces, walls and physical objects to be used as interfaces.•It displays data sent from smart phone on any surface in view.
Smart phone• As the smart phone is open sourced.
• The software searches the web and interprets the hand gestures.
Color markers• They help the camera to recognize the hand gestures.• The movements and arrangements of these markers are interpreted and they act as instructions for the projected application interfaces.
WorkingImages
Gestures
Vision
Capture
To process the video sequence
Send info
Project image Info on surface
Vision based gesture recognitionInvolves hand shape, position, and movement.Software's used in processing are Java,.net,SYMBIAN.It is done through following steps:
Image capturingFinger tip detectionFeature extractiontracking
Feature extraction
1)Circles and ellipses extracted from an image of a hand.
2) Selected image features corresponding to the palm, the fingers and the finger tips of a hand.
3) The selected image features capture the essential structure of a hand.
Interaction based direct manipulation and symbolic gestures
Tracking result
Gesture mode
selector
Operating mode selector
Application controller for direct
manipulation
Application controller for
symbolic gesture
Symbolic gesture recognizer
Application
Operating mode
No of fingers
location
Size & location of the gesture
trajectory
Kind of gesture
AdvantagesPortable.Multi touch and multi user interaction.Time conserving.connects the real world and digital world.Mind map the idea anywhere.Data access from machine directly in real time.
LimitationsImage noise.High cost of individual components.
ConclusionUsing this technology:
“Finally one gets a taste of the world of Harry Potter.”Interaction via natural hand gestures.Recognizes objects around us and displays information.Transparent user interface.This prototype shows several applications that proves
usefulness and flexibility of the system.