We developed a novel projection-type integral threedimensional (3D) display method using multiple projectors and displayed a 3D image with a wide viewing angle. In the proposed method, the viewing angle and positions of light spots that become pixels of a 3D image are controlled by projecting elemental images onto a lens array at a predetermined angle as collimated light beams. By projecting elemental images at different angles from multiple projectors installed at optimal positions, the viewing angle is enlarged, and the resolution is enhanced. We prototyped a projection-type integral 3D display system consisting of five ultra high definition (UHD) projectors with a viewing angle of 40 degrees in the horizontal and vertical directions while having a resolution of 114 thousand dots in the center view. We experimentally verified the display performance of the prototype display system and confirmed the validity of the proposed method.
Hayato Watanabe, Masahiro Kawakita, Naoto Okaichi, Hisayuki Sasaki, Masanori Kano, Jun Arai, Tomoyuki Mishina, "Wide viewing angle projection-type integral 3D display system with multiple UHD projectors" in Proc. IS&T Int’l. Symp. on Electronic Imaging: Stereoscopic Displays and Applications XXVIII, 2017, pp 67 - 73, https://doi.org/10.2352/ISSN.2470-1173.2017.5.SDA-358