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Proceedings Article

A method for the real-time construction of a full parallax light field

[+] Author Affiliations
Kenji Tanaka, Soko Aoki

Sony Corp. (Japan)

Proc. SPIE 6055, Stereoscopic Displays and Virtual Reality Systems XIII, 605516 (January 30, 2006); doi:10.1117/12.643597
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From Conference Volume 6055

  • Stereoscopic Displays and Virtual Reality Systems XIII
  • Andrew J. Woods; Neil A. Dodgson; John O. Merritt; Mark T. Bolas; Ian E. McDowall
  • San Jose, CA | January 15, 2006

abstract

We designed and implemented a light field acquisition and reproduction system for dynamic objects called LiveDimension, which serves as a 3D live video system for multiple viewers. The acquisition unit consists of circularly arranged NTSC cameras surrounding an object. The display consists of circularly arranged projectors and a rotating screen. The projectors are constantly projecting images captured by the corresponding cameras onto the screen. The screen rotates around an in-plane vertical axis at a sufficient speed so that it faces each of the projectors in sequence. Since the Lambertian surfaces of the screens are covered by light-collimating plastic films with vertical louver patterns that are used for the selection of appropriate light rays, viewers can only observe images from a projector located in the same direction as the viewer. Thus, the dynamic view of an object is dependent on the viewer's head position. We evaluated the system by projecting both objects and human figures and confirmed that the entire system can reproduce light fields with a horizontal parallax to display video sequences of 430x770 pixels at a frame rate of 45 fps. Applications of this system include product design reviews, sales promotion, art exhibits, fashion shows, and sports training with form checking.

© (2006) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Kenji Tanaka and Soko Aoki
"A method for the real-time construction of a full parallax light field", Proc. SPIE 6055, Stereoscopic Displays and Virtual Reality Systems XIII, 605516 (January 30, 2006); doi:10.1117/12.643597; http://dx.doi.org/10.1117/12.643597


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