| Presentation | 2003/9/12 Eigen Nodule Gentaro FUKANO, Yoshihko NAKAMURA, Hotaka TAKIZAWA, Shinji YAMAMOTO, Tohru MATSUMOTO, Yukio TATENO, Takeshi IINUMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a new recognition method of nodules using each CT value itself in ROI (region of interest) area as a feature value. In the learning phase, first, candidate regions are automatically classified into some groups using principal component analysis. A set of CT values in a ROI including each detected region is regarded as a feature vector, and then subspaces are calculated for each group by applying KL expansion. In the testing phase, a testing feature vector is projected to each subspace. Distances from the testing vector to the projected points are measured. If the distance to the nodule subspace is nearest, it is determined to be a nodule. Otherwise, it is determined to be a blood vessel. By applying our new method, the number of the false positives is 0.9[shadow/slice] without false negatives. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Chest X-ray CT images / Recognition of lung nodules / Subspace method / Eigen nodule / View-based recognition |
| Paper # | MI2003-39 |
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| Conference Information | |
| Committee | MI |
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| Conference Date | 2003/9/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Medical Imaging (MI) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Eigen Nodule |
| Sub Title (in English) | |
| Keyword(1) | Chest X-ray CT images |
| Keyword(2) | Recognition of lung nodules |
| Keyword(3) | Subspace method |
| Keyword(4) | Eigen nodule |
| Keyword(5) | View-based recognition |
| 1st Author's Name | Gentaro FUKANO |
| 1st Author's Affiliation | Toyohashi University of Technology : Yokogawa Electric Corporation() |
| 2nd Author's Name | Yoshihko NAKAMURA |
| 2nd Author's Affiliation | Toyohashi University of Technology |
| 3rd Author's Name | Hotaka TAKIZAWA |
| 3rd Author's Affiliation | Toyohashi University of Technology |
| 4th Author's Name | Shinji YAMAMOTO |
| 4th Author's Affiliation | Toyohashi University of Technology |
| 5th Author's Name | Tohru MATSUMOTO |
| 5th Author's Affiliation | National Institute of Radiological Sciences |
| 6th Author's Name | Yukio TATENO |
| 6th Author's Affiliation | National Institute of Radiological Sciences |
| 7th Author's Name | Takeshi IINUMA |
| 7th Author's Affiliation | National Institute of Radiological Sciences |
| Date | 2003/9/12 |
| Paper # | MI2003-39 |
| Volume (vol) | vol.103 |
| Number (no) | 319 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |