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Paper Abstract and Keywords
Presentation 2018-02-15 16:30
Speeding up of photo-realistic point cloud generation for computer-generated holograms using photon mapping
Shun Okuyama, Takeshi Yamaguchi, Hiroshi Yoshikawa (Nihon Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The computer-generated hologram (CGH) can reproduce a virtual object in a real space as a complete three-dimensional image. In order to calculate interference fringes as CGH the point light source data is generated by acquiring a two-dimensional perspective view and depth information of the virtual object. In the previous studies, graphic point light source data was generated using progressive photon mapping (PPM). However, in the calculation of CGH with proper hidden surface removal, point light source data generated from a plurality of viewpoints are required,In the PPM, it is necessary to perform irradiation of photons at each viewpoint and it takes time to calculate. Therefore, in this report, by using photon mapping that uses data of previously irradiated photons at each viewpoint, it is possible to generate point light source data at each viewpoint at high speed.
Keyword (in Japanese) (See Japanese page) 
(in English) computer –generated hologram / photon mapping / / / / / /  
Reference Info. ITE Tech. Rep., vol. 42, no. 4, AIT2018-3, pp. 99-104, Feb. 2018.
Paper # AIT2018-3 
Date of Issue 2018-02-08 (MMS, HI, ME, AIT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee IEICE-ITS IEICE-IE MMS HI ME AIT  
Conference Date 2018-02-15 - 2018-02-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processing, etc. 
Paper Information
Registration To AIT 
Conference Code 2018-02-ITS-IE-MMS-HI-ME-AIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Speeding up of photo-realistic point cloud generation for computer-generated holograms using photon mapping 
Sub Title (in English)  
Keyword(1) computer –generated hologram  
Keyword(2) photon mapping  
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1st Author's Name Shun Okuyama  
1st Author's Affiliation Nihon University (Nihon Univ.)
2nd Author's Name Takeshi Yamaguchi  
2nd Author's Affiliation Nihon University (Nihon Univ.)
3rd Author's Name Hiroshi Yoshikawa  
3rd Author's Affiliation Nihon University (Nihon Univ.)
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Speaker
Date Time 2018-02-15 16:30:00 
Presentation Time 15 
Registration for AIT 
Paper # ITE-MMS2018-3,ITE-HI2018-3,ITE-ME2018-3,ITE-AIT2018-3 
Volume (vol) ITE-42 
Number (no) no.4 
Page pp.99-104 
#Pages ITE-6 
Date of Issue ITE-MMS-2018-02-08,ITE-HI-2018-02-08,ITE-ME-2018-02-08,ITE-AIT-2018-02-08 


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