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Paper Abstract and Keywords
Presentation 2019-12-06 11:35
Removing an Artifact from Images Taken by a Lensless Camera based on an Analysis of the Point Spread Function
Ryota Kawamata, Kazuyuki Tajima, Yusuke Nakamura (Hitachi)
Abstract (in Japanese) (See Japanese page) 
(in English) We have been developing a lensless camera using a Fresnel zone aperture. This technology enables a very thin device making close-up photography possible. However, for objects with significant brightness edges, an artifact arises at fixed positions in the images. We analyze the unusual point spread function of the lensless camera and establish a method to reduce the artifact taking its uniqueness into account.
Keyword (in Japanese) (See Japanese page) 
(in English) Lensless / Fresnel zone / Moiré / Computational photography / / / /  
Reference Info. ITE Tech. Rep., vol. 43, no. 41, MMS2019-59, pp. 65-68, Dec. 2019.
Paper # MMS2019-59 
Date of Issue 2019-11-28 (MMS) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee IEICE-MRIS MMS  
Conference Date 2019-12-05 - 2019-12-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing and Others 
Paper Information
Registration To MMS 
Conference Code 2019-12-MRIS-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Removing an Artifact from Images Taken by a Lensless Camera based on an Analysis of the Point Spread Function 
Sub Title (in English)  
Keyword(1) Lensless  
Keyword(2) Fresnel zone  
Keyword(3) Moiré  
Keyword(4) Computational photography  
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1st Author's Name Ryota Kawamata  
1st Author's Affiliation Hitachi, Ltd. (Hitachi)
2nd Author's Name Kazuyuki Tajima  
2nd Author's Affiliation Hitachi, Ltd. (Hitachi)
3rd Author's Name Yusuke Nakamura  
3rd Author's Affiliation Hitachi, Ltd. (Hitachi)
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Speaker
Date Time 2019-12-06 11:35:00 
Presentation Time 25 
Registration for MMS 
Paper # ITE-MMS2019-59 
Volume (vol) ITE-43 
Number (no) no.41 
Page pp.65-68 
#Pages ITE-4 
Date of Issue ITE-MMS-2019-11-28 


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