Spheree: An interactive perspective-corrected spherical 3D display

We describe Spheree, a novel, interactive spherical, perspective-corrected 3D display useful for 3D animations and 3D image-based content. We use an array of pico projectors mounted under the spherical display that are calibrated and blended using an image-fusion library to achieve a single continuous image on the spherical screen area without the use of special lenses or mirrors. By tracking the user's viewpoint, we render the correct perspective to achieve a 3D view. This approach enables the viewer to look around the entire sphere and receive both horizontal and vertical motion parallax for a full 3D view. Spheree can be used to show graphics-based contents such as 3D computer graphics animation and 3D image-based rendering applications. By providing a 3D plugin library, Spheree can easily be a second screen to computer animation and modelling software. Spheree is scalable from small, handheld display to large, walk-around experiences. Spheree supports direct interaction techniques for an exciting participant experience. The advancees of our 3D display are the fidelity of the experience and robustness of the displays.

[1]  Roel Vertegaal,et al.  TeleHuman: effects of 3d perspective on gaze and pose estimation with a life-size cylindrical telepresence pod , 2012, CHI.

[2]  Marcelo Knörich Zuffo,et al.  FastFusion: A Scalable Multi-projector System , 2012, 2012 14th Symposium on Virtual and Augmented Reality.

[3]  Aditi Majumder,et al.  PixelFlex 2 : A Comprehensive , Automatic , Casually-Aligned Multi-Projector Display , 2003 .

[4]  Aditi Majumder,et al.  A Scalable Distributed Paradigm for Multi-User Interaction with Tiled Rear Projection Display Walls , 2010, IEEE Transactions on Visualization and Computer Graphics.

[5]  Michael S. Brown,et al.  Practical Multi-Projector Display Design , 2007 .

[6]  Kiarash Amiri,et al.  Collaborative video playback on a federation of tiled mobile projectors enabled by visual feedback , 2012, MMSys '12.

[7]  Ruigang Yang,et al.  PixelFlex: a reconfigurable multi-projector display system , 2001, Proceedings Visualization, 2001. VIS '01..

[8]  Roel Vertegaal,et al.  SnowGlobe: a spherical fish-tank VR display , 2011, CHI Extended Abstracts.

[9]  Michael Deering,et al.  High resolution virtual reality , 1992, SIGGRAPH.

[10]  Roel Vertegaal,et al.  A comparison of competitive and cooperative task performance using spherical and flat displays , 2012, CSCW '12.

[11]  W. Brent Seales,et al.  Multi-projector displays using camera-based registration , 1999, Proceedings Visualization '99 (Cat. No.99CB37067).

[12]  Marcelo Knörich Zuffo,et al.  A Small-Scale and Flexible Platform for Multi-projector Systems Development , 2013, 2013 XV Symposium on Virtual and Augmented Reality.

[13]  Marcelo Knörich Zuffo,et al.  A scalable multi-DLP pico-projector system for virtual reality , 2014, Photonics West - Micro and Nano Fabricated Electromechanical and Optical Components.

[14]  Marcelo Knörich Zuffo,et al.  Analysis of a Scalable Multi-Projector System for Virtual Reality Environments , 2013, Int. J. Virtual Real..