1. DARREN A. NEIL
PRESENTS

2. OMNI TOUCH
TECHNOLOGY
OmniTouch is a wearable depth-sensing
and projection system that enables
interactive multitouch applications on
everyday surfaces (Harrison, Benko,
Wilson, 2011).

3. OMNI TOUCH
TECHNOLOGY
 Introduction
 Related work
 Hardware
 Multitouch Finger Tracking

4. OMNI TOUCH
TECHNOLOGY
 Finger Segmentation
 Finger Click Detection
 Surface Segmentation and Tracking
 Projector/Camera Calibration....

5. HARDWARE

6. FINGER SEGMENTATION

7. FINGER SEGMENTATION

8. FINGER CLICK
DETECTION

9. SURFACE SEGMENTATION &
TRACKING

10. STRENGTHS
 enables interactive multitouch
applications on everyday surfaces.
 uses the users hands, arms, and legs as
graphical, interactive surfaces
 users can transiently appropriate
surfaces from the environment to
expand the interactive area eg books,
walls, tables.
 uses all these surfaces without any
calibration

11. WEAKNESS
 the system is sensitive to approach
angle of fingers.
 require fingers to be outstretched to be
recognisable.
 the system assumes that the user is a
right hander
 projection distance limited
 classification driven approach suffers
from scalability issues since it is not
possible to build a classifier for every
conceivable surface.

12. DEMO OF OMNI TOUCH

13. QUESTIONS

14. REFERENCE
Harrison, Benko, Wilson, 2011.
OmniTouch: Wearable Multitouch
Interaction Everywhere. Retrieved April
10, 2012. From
http://www.chrisharrison.net/index.php/R
esearch/OmniTouch