open access

https://hdl.handle.net/2115/58023

Calculation Method Using a Set of Microfacets for Computer-Generated Hologram Considering Reflectance Distributions

日本語

Blinnの反射モデル

2009-12-01

映像情報メディア学会

The journal of the Institute of Image Information and Television Engineers

63(12)

1846-1852

Computer-generated hologram (CGH) is a technology that makes hologram data using a simulation of the recording process of holography. However, there are still many problems with CGH. We describe a calculation method that takes into consideration the reflectance distribution of object surfaces for CGH to improve the reality of reconstructed images. This method is based on the Blinn, or the Torrance-Sparrow, reflection models in CG. In these models, object surfaces are divided into a set of mirror-like microfacets. By calculating the phase differences of object surfaces with these models, various reflectance distributions for CGH are expressed. We did computer-simulated experiments, which compared the light intensity distribution of simulated values on each reflectance factor. We also did optical reconstruction experiments. These experiments showed that the proposed method makes various reflectance distributions of reconstructed images.

学術雑誌論文

Version of Record

1342-6907