Download - See through Augmented Reality
#2see through AR
HCI multi touch display seminarManuel Blechschmidt
supervisor: Christian Holz
Final Presentation
hasso-plattner institutewinter 2009/10
Video see-trough devices
optical see-through head-mounted display
See through ARMaking a display like a window to the real world
Demonstration
Demonstration
Related Work
Johnny Lee: Head Tracking for Desktop VR Displays using the Wii Remote
Related Work
Harrison, C. and Hudson, S. E. 2008. Pseudo-3D Video Conferencing with a Generic Webcam
How to does it work?
How to does it work?
How to does it work?
How to does it work?
How to does it work?
How to does it work?
How to does it work?
How to does it work?
How to does it work?
Math
G1
G2
G3
G4
SG 1E
SG 2E
SG 3E
SG 3EwM
hM
x kykzk
• Head position• Monitor Width• Monitor height
• Distance of projection plan eE
• 4 lines from head position crossing edges of display
ImplementationMacBook Prointegrated webcam → faceexternal webcam → occluded partOpenCV
Comparison
optical HMD video HMD display see thru
Acceptance User has to wear a HMD User has to wear a HMD is enabled when device is used
Latency no latency „only“ latency of video stream big latency because of analyzing images
Resolution excellent satisfying quite bad
Field of view 20° - 60° 20° - 90° small, max 60 ° normally a lot less
Cost expensive less expensive cheap
View Matching exact some cm shift not exact yet
Source: A comparison of optical and video se-throug head-mounted displays J. P. Roland, R. L. Holoway , and H.Fuchs
Further research• Use motion detection like TinyMotion to know
when the camera is moving• Use depth cam to get a better understanding
of the environment• Get better hardware to have a better feeling
about what is possible• Think about augmented reality features which
could be build in
end