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Paper Abstract and Keywords
Presentation 2010-06-22 10:00
Adaptive-Bandwith Shape From Focus/Defocus Technique
Tatsuhiro Yamaguchi, Yutaka Nakano, Toshiyuki Yoshida (Univ. of Fukui)
Abstract (in Japanese) (See Japanese page) 
(in English) “Shape from focus or defocus” has been known as one of the 3-D shape reconstruction techniques, which estimates depth information from a set of multi-focus images of a target object. However, the technique suffers from the disadvantage that the luminance variation between adjacent blocks severely affects a focusing measure used for the depth estimation, causing accuracy degradation in the target model. To alleviate the problem, this paper proposes a new technique which adaptively selects three kinds of high-pass filters for the calculation of the focusing measure based on the evaluation of the single/multi-peak behavior of the focusing measure. The proposed technique has been applied to artificial models and actual images to illustrate the usefulness of the proposed technique.
Keyword (in Japanese) (See Japanese page) 
(in English) 3-D shape reconstruction / depth estimation / shape from focus/defocus / error reduction / adaptive processing / / /  
Reference Info. ITE Tech. Rep., vol. 34, no. 22, ME2010-101, pp. 1-4, June 2010.
Paper # ME2010-101 
Date of Issue 2010-06-15 (IST, ME) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee ME IST  
Conference Date 2010-06-22 - 2010-06-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanazawa Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ME 
Conference Code 2010-06-ME-IST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive-Bandwith Shape From Focus/Defocus Technique 
Sub Title (in English)  
Keyword(1) 3-D shape reconstruction  
Keyword(2) depth estimation  
Keyword(3) shape from focus/defocus  
Keyword(4) error reduction  
Keyword(5) adaptive processing  
1st Author's Name Tatsuhiro Yamaguchi  
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 2010-06-22 10:00:00 
Presentation Time 30 
Registration for ME 
Paper # ITE-IST2010-29,ITE-ME2010-101 
Volume (vol) ITE-34 
Number (no) no.22 
Page pp.1-4 
#Pages ITE-4 
Date of Issue ITE-IST-2010-06-15,ITE-ME-2010-06-15 

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