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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Information Science and Technology / Faculty of Information Science and Technology >
Peer-reviewed Journal Articles, etc >
Realistic expression for full-parallax computer-generated holograms with the ray-tracing method
| Title: | Realistic expression for full-parallax computer-generated holograms with the ray-tracing method |
| Authors: | Ichikawa, Tsubasa Browse this author | | Yamaguchi, Kazuhiro Browse this author | | Sakamoto, Yuji Browse this author →KAKEN DB |
| Issue Date: | 1-Jan-2013 |
| Publisher: | Optical Society of America |
| Journal Title: | Applied Optics |
| Volume: | 52 |
| Issue: | 1 |
| Start Page: | A201 |
| End Page: | A209 |
| Publisher DOI: | 10.1364/AO.52.00A201 |
| PMID: | 23292395 |
| 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. |
| Rights: | © 2013 Optical Society of America |
| Type: | article |
| URI: | http://hdl.handle.net/2115/52058 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 市川 翼
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