Post on 10-Jul-2015
[Web version]Please visit this URL to give your feedback:
http://www.shirai.la/project/scritter
2x3D: Real time shader for
simultaneous 2D/3D hybrid theater
Wataru FUJIMURA, Yukua KOIDE,
Robert SONGER (Kanazawa Technical College),
Takahiro HAYAKAWA, Akihiko SHIRAI, Kazuhisa YANAKA
KAIT(Kanagawa Institute of Technology)
2x3d@shirai.la
Summary of this talk
• “2x3D” (tú: bái θrí: dí:) is a new 2D/3D hybrid display
• Everyone can see a same screen at same time!
Issues
Technical Issue
Current 3D stereoscopic imagery can not be seen without
the 3D glasses, and it is due to the doubled image shown.
Issues
Social/Market Issue:
We can not see a same screen in same time!
Solution
Technique
• ScritterH, the 2nd generation of multiplex imaging
• Image hiding algorithm
• GPU based real time shader
• Experiments
Related works:– multiplex / hidden imagery
• Direction based separation– “Bois-Clair” (Gaspar Antoine, 1692)
– “Vari-Vue” (Victor Anderson, 1962)
– “Lumisight Table”(2005), ”UlteriorScape” (2008) by Kakehi
• Time/Shutter based technologies– “Snared illumination” (fakespace lab, 2004)
– “ThirdEye” (Pranav Mistry, 2009)
– “SimulView” (SONY, 2010-)
• Polarization based technologies– “FaryFinder” (Hachiya, 2005)
– “Mysterious Pond”, “A visibility control system for collaborative digital table” (Kitamura, Sakurai. 2009)
• Hidden but not shown for naked eyes– Patent: JPA2005-092227 (Semiconductor Energy Lab, 2005)
(All images are taken from each references)
• ScritterH is 2nd generation of Scritter series, a hidden imagery method that invented by Utsugi, Shirai and Yanaka in 2010.
• It has compatibility with current S3D polarized projection.– Common hardware setup with similar stacking S3D.
– No electronic devices needed for the viewer’s side.
“Scritter H” Hidden imagery
NegativeB’+A’Contrast
compressionSource Images
ScritterH, image hiding algorithm
Image B
Image A
Image B’
Image A’ Image C
Projector 1
Projector 2
Polarization
ScritterH, image hiding algorithm
Image C
Naked eyes / filtered view
Gamma correction
Normalized positive + negative projection
With gamma correction:The center band looks for a same color.
ScritterH algorithm
• See more details on ACM Portal
– “ScritterHDR: multiplex-hidden imaging on high dynamic range projection”
– “A new "multiplex content" displaying system compatible with current 3D projection technology”
• Pixelshader on XNA GameStudio 4.0
GPU based real time shader
Inversed Gamma correction
Dynamic ScritterHalgorithm
2x3D configuration
• For better quality of imagery for various viewers
• Cognitive experiments
– Tested on a still image to cancel “the Pulfrich Illusion”
Experiments
Depth are …● :4■ :3◯:1▲:2
• 75% of viewers could answered the correct depth.
Applications
• Closed captioning or commentary overlay
• Education
• Medical
[Latest works]
• KARAOKE
• UbiCode– Interactivity for non interactive display
• 3rd generation of Scritter
Example: PARAOKE• “Parallel Augmented Reality for Audience-
Oriented Karaoke Entertainment”
• Lyrics + Dance game + Calorie consumption display
– Published in Laval Virtual ReVolution, NICOGRAPH 2012
ABC
Conclusion• “2x3D” is a new 2D/3D hybrid display
• Everyone can see a same screen at same time!
International Patent is Pending, contact: 2x3d@shirai.la http://www.shirai.la/project/scritter
Thanks for your interestPlease visit this URL to give your feedback:
http://www.shirai.la/project/scritter