Realistic expression for full-parallax computer-generated holograms with the ray-tracing method

• Ichikawa, Tsubasa

• Yamaguchi, Kazuhiro

• Sakamoto, Yuji

Abstract

This paper presents a calculation method of computer-generated holograms that involves removing the hidden surface and provides realistic rendering. The method was based on the ray-tracing method that simulates rays traveling paths. Rays are cast from every elementary hologram into virtual objects and then the traveling paths of the rays are determined. Since the method is considering intersection with objects, absorption, reflection, and refraction, the method is capable of rendering realistic images. Multiple reflections and refraction are expressed by casting additional rays into the reflection direction and the transmission direction and calculating the length of the light path. To express the quality of materials, the Phong reflection model and Cook-Torrance reflection model were used. Results of optical reconstructions show that the hidden surface removal was conducted. Moreover, the texture of material appeared as well as other effects by the proposed method.

Journal

• Applied Optics

  Applied Optics 52 (1), A201-A209, 2013-01-01

  Optical Society of America

Keywords

• Atomic and Molecular Physics, and Optics
• Engineering (miscellaneous)
• Electrical and Electronic Engineering

Details

• CRID: 1050845763943379072
• NII Article ID: 120005228218
• DOI: 10.1364/ao.52.00a201
• ISSN: 21553165
• ISSN: 1559128X
• HANDLE: 2115/52058
• Web Site: https://www.osapublishing.org/viewmedia.cfm?URI=ao-52-1-A201&seq=0
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN