gCubik: 手に取り複数人で観察可能なキューブ型裸眼立体ディスプレイの実装手法

概要

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We propose a cubic 3D display named “gCubik” which allows multiple users to simultaneously view and share 3D images. The display uses an auto-stereoscopic technique. Therefore, users can see 3D objects without the need for special 3D glasses. Its cubic shape enables users to view from arbitrary angles of 360 degree by handling the cube as if the 3D objects were in a glazed-showcase. We describe an implementation approach of the gCubik. First, we investigate the necessary parameters for fabricating a cubic auto-stereoscopic display based on the integral photography (IP) technique. Next, according to these parameters, we discuss our design of a wide field of view lens array for the IP technique. Then, we explain the construction of the cubic device using the six IP displays and the application of an OpenGL-based rendering algorithm for each lens. Finally, we discuss the produced 3D images by observing them from several different viewpoints.