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Paper Abstract and Keywords
Presentation 2014-11-29 10:00
A Temporal Subtraction Technique on Thoracic MDCT Images by Using GGVF and Smoothing of Shift Vectors
Yuriko Yoshino, Hyoungseop Kim, Joo Kooi Tan, Seiji Ishikawa (KIT), Seiichi Murakami, Takatoshi Aoki (UOEH)
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, some computer aided diagnoses (CAD) systems has been introduced until now. Temporal subtraction technique, as one of the CAD systems, can emphasize temporal changes of interested regions by subtracting a previous image from a current one, which are images of a same patient. A previous image is deformed to suit a current image considering a variation of pose and inhalation differences when a patient accepts CT inspection at different times and subtracted from a current image. However, accurate registration is difficult because organizations such as a vessel are distributed three-dimensionally in a lung region. It is caused that each shift vector (shift amount and direction of a pixel) is less consistency to surrounding shift vectors in some area of a lung region by mis-registration and many artifacts are remained on temporal images. In this paper, we propose a method of registration based on GGVF considering information of structures in a lung regions and smoothing of shift vectors, and aim to improve registration and reduce artifacts in a subtraction image.
Keyword (in Japanese) (See Japanese page) 
(in English) GGVF / Vector flow / Shift vectors / Temporal subtraction technique / Computer Aided Diagnosis / Thoracic MDCT / /  
Reference Info. ITE Tech. Rep., vol. 38, no. 46, HI2014-74, pp. 53-56, Nov. 2014.
Paper # HI2014-74 
Date of Issue 2014-11-21 (HI) 
ISSN Print edition: ISSN 1342-6893
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Conference Information
Committee HI  
Conference Date 2014-11-28 - 2014-11-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto City International Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Visual and auditory Senses, multi modal processing, Kansei information processing, etc. 
Paper Information
Registration To HI 
Conference Code 2014-11-HI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Temporal Subtraction Technique on Thoracic MDCT Images by Using GGVF and Smoothing of Shift Vectors 
Sub Title (in English)  
Keyword(1) GGVF  
Keyword(2) Vector flow  
Keyword(3) Shift vectors  
Keyword(4) Temporal subtraction technique  
Keyword(5) Computer Aided Diagnosis  
Keyword(6) Thoracic MDCT  
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Keyword(8)  
1st Author's Name Yuriko Yoshino  
1st Author's Affiliation Kyushu Institute of Technology (KIT)
2nd Author's Name Hyoungseop Kim  
2nd Author's Affiliation Kyushu Institute of Technology (KIT)
3rd Author's Name Joo Kooi Tan  
3rd Author's Affiliation Kyushu Institute of Technology (KIT)
4th Author's Name Seiji Ishikawa  
4th Author's Affiliation Kyushu Institute of Technology (KIT)
5th Author's Name Seiichi Murakami  
5th Author's Affiliation University of Occupational & Environmental Health (UOEH)
6th Author's Name Takatoshi Aoki  
6th Author's Affiliation University of Occupational & Environmental Health (UOEH)
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Speaker Author-1 
Date Time 2014-11-29 10:00:00 
Presentation Time 20 minutes 
Registration for HI 
Paper # HI2014-74 
Volume (vol) vol.38 
Number (no) no.46 
Page pp.53-56 
#Pages 4 
Date of Issue 2014-11-21 (HI) 

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