Ray-space acquisition and reconstruction within cylindrical objective space

Tomohiro Yendo; Toshiaki Fujii; Masayuki Tanimoto

doi:10.1117/12.650987

27 January 2006 Ray-space acquisition and reconstruction within cylindrical objective space

Tomohiro Yendo, Toshiaki Fujii, Masayuki Tanimoto

Proceedings Volume 6055, Stereoscopic Displays and Virtual Reality Systems XIII; 60550W (2006) https://doi.org/10.1117/12.650987
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

A ray-based cylindrical display is proposed that allows multiple viewers to see 3D images from a 360-degree horizontal arc without wearing 3-D glasses. This technique uses a cylindrical parallax barrier and a one-dimensional light source array constructed from such semiconductor light sources as LEDs aligned in a vertical line. The light source array rotates along the inside of the cylindrical parallax barrier, and the intensity of each light is synchronously modulated with the rotation. Since this technique is based on the parallax panoramagram, the density of rays is limited by the diffraction at the parallax barrier. In order to solve this problem, we employed revolving parallax barrier. We have developed two protype displays and they showed high presence 3D image. Especially the newer one is capable of displaying color images whose diameter is 200mm, it is suitable for displaying real object like a human head. Therefore we acquired ray-space data using a video camera rotating around an object and reconstructed the object using the prototype display successfully. In this paper, we describe details of the system and discuss about ray control method to reconstruct object from ray-space data.

Citation Download Citation

Tomohiro Yendo, Toshiaki Fujii, and Masayuki Tanimoto "Ray-space acquisition and reconstruction within cylindrical objective space", Proc. SPIE 6055, Stereoscopic Displays and Virtual Reality Systems XIII, 60550W (27 January 2006); https://doi.org/10.1117/12.650987

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