Abstract

The research on reflectance distributions in computer-generated holograms (CGHs) is particularly sparse, and the textures of materials are not expressed. Thus, we propose a method for calculating reflectance distributions in CGHs that uses the finite-difference time-domain method. In this method, reflected light from an uneven surface made on a computer is analyzed by finite-difference time-domain simulation, and the reflected light distribution is applied to the CGH as an object light. We report the relations between the surface roughness of the objects and the reflectance distributions, and show that the reflectance distributions are given to CGHs by imaging simulation.

©2011 Optical Society of America

Calculation method for computer-generated holograms considering various reflectance distributions based on microfacets with various surface roughnesses

Kazuhiro Yamaguchi, Tsubasa Ichikawa, and Yuji Sakamoto
Appl. Opt. 50(34) H195-H202 (2011)

Computer generated hologram with characteristics of reflection: reflectance distributions and reflected images

Kazuhiro Yamaguchi and Yuji Sakamoto
Appl. Opt. 48(34) H203-H211 (2009)

Calculation for computer generated hologram using ray-sampling plane

Koki Wakunami and Masahiro Yamaguchi
Opt. Express 19(10) 9086-9101 (2011)

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

Tsubasa Ichikawa, Kazuhiro Yamaguchi, and Yuji Sakamoto
Appl. Opt. 52(1) A201-A209 (2013)

Rendering of specular surfaces in polygon-based computer-generated holograms

Hirohito Nishi, Kyoji Matsushima, and Sumio Nakahara
Appl. Opt. 50(34) H245-H252 (2011)