Driven by the recent resurgence of 3D cinema, depth cameras and stereoscopic displays are becoming commonplace in the consumer market. Introduced last October, Microsoft Kinect has already fostered gesture-based interaction for applications well beyond the intended Xbox 360 platform. Similarly, consumer electronics manufacturers have begun selling stereoscopic displays and inexpensive stereoscopic cameras. Most commercial 3D displays continue to require cumbersome eyewear, but inexpensive, glasses-free 3D displays are imminent with the release of the Nintendo 3DS. At SIGGRAPH 2010, the Build Your Own 3D Display course demonstrated how to construct both LCD shutter glasses and glasses-free lenticular screens, providing Matlab-based code for batch encoding of 3D imagery. This follow-up course focuses more narrowly on glasses-free displays, describing in greater detail the practical aspects of real-time, OpenGL-based encoding for such multi-view, spatially multiplexed displays. The course reviews historical and perceptual aspects, emphasizing the goal of achieving disparity, motion parallax, accommodation, and convergence cues without glasses. It summarizes state-of-the-art methods and areas of active research. And it provides a step-by-step tutorial on how to construct a lenticular display. The course concludes with an extended question-and-answer session, during which prototype hardware is available for inspection.

2. Construction Glasses-free 3D Displays

3. Multi-view Rendering using OpenGL

4. Multi-view Interlacing using GLSL

5. Designing Content for Glasses-free 3D Displays

6. Emerging Technology

8. Summary: Glasses-Free 3D Displays Parallax Barriers Multi-planar Static (holographic films) (uniform array of 1D slits or 2D pinhole arrays) (time-sequential projection onto swept surfaces) Integral Imaging Transparent Substrates Dynamic (holovideo) (lenticular sheets or fly’s eye lenslet arrays) (intersecting laser beams, fog layers, etc.) Parallax-based (2D display with light-directing elements) Volumetric Glasses-Free 3D Displays (Automultiscopic Displays) (directly illuminate points within a volume) Holographic (reconstructs wavefront using 2D element)

10. A slanted lenticular distributes resolution loss between vertical and horizontal axes

11. Commercialized as Philips WOWvx, but discontinued in March of 2009 and spun off as DimencoC. van Berkel and J. A. Clarke.Characterization and Optimization of 3D-LCD Module Design. Proc. SPIE, 1997

12. Recent Work: NYU Autostereoscopic Display Time-Shifted Parallax Barriers Varying-Width Parallax Barriers K. Perlin, S. Paxia, J. Kollin.An Autostereoscopic Display. ACM SIGGRAPH, 2000 K. Perlin, C. Poultney, J. Kollin, D. Kristjansson,S. Paxia. Recent Advances in the NYU Autostereoscopic Display. Proceedings of the SPIE, 2001

13. Recent Work: Dynallax and Cylindrical Varrier Displays D. J. Sandin et al.The Varrier Autostereoscopic Virtual Reality Display. ACM SIGGRAPH, 2005 T. Peterka et al.Dynallax: Solid State Dynamic Parallax Barrier Autostereoscopic VR Display. IEEE Virtual Reality, 2007

14. Recent Work: Antialiasing for Automultiscopic Displays Reconstruction Filter Only Combined Resampling Filter M. Zwicker, W. Matusik, F. Durand, H. Pfister.Antialiasing for Automultiscopic 3D Displays. EGSR, 2006

15. Recent Work: An Interactive 360° Light Field Display A. Jones, I. McDowall, H. Yamada, M. Bolas, P. Debevec.Rendering for an Interactive 360° Light Field Display. ACM SIGGRAPH, 2007

16. Recent Work: Zebra Imaging, Inc. and RabbitHoles Holdings Corp.

18. High-Rank 3D (HR3D)considers dual-layer design with arbitrary opacity and temporal multiplexing

19. Layered 3Dconsiders multi-layer design without temporal multiplexingD. Lanman, M. Hirsch, Y. Kim, R. Raskar.Content-Adaptive Parallax Barriers: Optimizing Dual-Layer 3D Displays using Low-Rank Light Field Factorization. ACM SIGGRAPH Asia, 2010 G. Wetzstein, D. Lanman, W. Heidrich, R. Raskar. Layered 3D: Tomographic Image Synthesis for Attenuation-based Light Field and High Dynamic Range Displays. ACM SIGGRAPH, 2011

20. Recent Work: Conventional Parallax Barriers [Ives, 1903] rear mask front mask

21. Recent Work: High-Rank 3D (HR3D) Display rear mask front mask D. Lanman, M. Hirsch, Y. Kim, R. Raskar.Content-Adaptive Parallax Barriers: Optimizing Dual-Layer 3D Displays using Low-Rank Light Field Factorization. ACM SIGGRAPH Asia, 2010

22. Recent Work: High-Rank 3D (HR3D) Display D. Lanman, M. Hirsch, Y. Kim, R. Raskar.Content-Adaptive Parallax Barriers: Optimizing Dual-Layer 3D Displays using Low-Rank Light Field Factorization. ACM SIGGRAPH Asia, 2010

23. Recent Work: Layered 3D: Tomographic Image Synthesis Stereo & Disparity Session Thursday, 11 August 10:45 AM – 12:15 PM East Building, Exhibit Hall A G. Wetzstein, D. Lanman, W. Heidrich, R. Raskar. Layered 3D: Tomographic Image Synthesis for Attenuation-based Light Field and High Dynamic Range Displays. ACM SIGGRAPH, 2011

25. Construction Glasses-free 3D Displays

26. Multi-view Rendering using OpenGL

27. Multi-view Interlacing using GLSL

28. Designing Content for Glasses-free 3D Displays

29. Emerging Technology