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Paper Abstract and Keywords
Presentation 2011-02-19 12:30
Multi-viewpoint Depth From Focus/Defocus Technique
Tomohiro Isono, 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. The technique estimates the depth for each point of a target object based on a focus measure extracted for each block on a set of multi-focus images. The authors have proposed a 3-D whole shape reconstruction technique, which first obtains a set of multi-view and multi-focus images for a target object and then integrates the shape models obtained from each viewpoint with the SFF/SFD. In this technique, the depth estimation error is expected to be reduced by using not only a single set of multi-focus images from a single viewpoint but also another set from another viewpoint together. Although we have realized such an idea in our previous report, the criteria for estimating depth values was not necessary optimal. This report thus introduces a new criteria which uses the derivative of an approximating function for the set of the focus measures, and gives some experimental results to show its effectiveness.
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. 35, no. 8, ME2011-21, pp. 81-84, Feb. 2011.
Paper # ME2011-21 
Date of Issue 2011-02-12 (ME) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee ME  
Conference Date 2011-02-19 - 2011-02-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanto Gakuin Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ME 
Conference Code 2011-02-ME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multi-viewpoint Depth From Focus/Defocus Technique 
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  
1st Author's Name Tomohiro Isono  
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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Date Time 2011-02-19 12:30:00 
Presentation Time 15 
Registration for ME 
Paper # ITE-ME2011-21 
Volume (vol) ITE-35 
Number (no) no.8 
Page pp.81-84 
#Pages ITE-4 
Date of Issue ITE-ME-2011-02-12 

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