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Paper Abstract and Keywords
Presentation 2014-10-03 09:20
Error Reduction in SFF technique based on a Weighted Sum of Subband Components
Naoto Fukukawa, Yutaka Nakano, Toshiyuki Yoshida (Univ. of Fukui)
Abstract (in Japanese) (See Japanese page) 
(in English) Shape From Focus/Defocus (SFF/SFD) has been known as a depth estimation technique by using focus information, which gives the depth estimation based on a blockwise focus measure calculated from a set of multi-focus images. The authors have proposed an error reduction technique for SFF which applies a spectral shaping (SS) filter, whose frequency response is a reciprocal of the lens point spread function (PSF), to the focus measure defined as the squared sum of a BPF output. However, this technique cannot reduce the estimation error sufficiently because of the error in the frequency response of the SS filter. To further reduce the estimation error, this paper proposes a new technique that compensates for the spectral error by a weighted sum of two BPF outputs.
Keyword (in Japanese) (See Japanese page) 
(in English) depth estimation / SFF/SFD / multi-viewpoint images / 3-D model / error reduction / / /  
Reference Info. ITE Tech. Rep., vol. 38, no. 39, ME2014-98, pp. 41-44, Oct. 2014.
Paper # ME2014-98 
Date of Issue 2014-09-25 (ME) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
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Conference Information
Committee ME JSKE  
Conference Date 2014-10-02 - 2014-10-03 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To ME 
Conference Code 2014-10-ME-JSKE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Error Reduction in SFF technique based on a Weighted Sum of Subband Components 
Sub Title (in English)  
Keyword(1) depth estimation  
Keyword(2) SFF/SFD  
Keyword(3) multi-viewpoint images  
Keyword(4) 3-D model  
Keyword(5) error reduction  
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1st Author's Name Naoto Fukukawa  
1st Author's Affiliation University of Fukui (Univ. of Fukui)
2nd Author's Name Yutaka Nakano  
2nd Author's Affiliation University of Fukui (Univ. of Fukui)
3rd Author's Name Toshiyuki Yoshida  
3rd Author's Affiliation University of Fukui (Univ. of Fukui)
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Speaker
Date Time 2014-10-03 09:20:00 
Presentation Time 25 
Registration for ME 
Paper # ITE-ME2014-98 
Volume (vol) ITE-38 
Number (no) no.39 
Page pp.41-44 
#Pages ITE-4 
Date of Issue ITE-ME-2014-09-25 


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