| Presentation | 2001/9/7 Three Dimensional Edge Detection with Robustness against Contrast Variation Based on Gradient Vector Orientation Yoshihiro HAGIHARA, Zeng XIAO YAN, Akinobu SHIMIZU, Hidefumi KOBATAKE, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a boundary plane detection method that is not dependent on contrast magnitude in three-dimensional images. The major difficulties of segmentation are caused by weakness of contrast, fuzziness of boundary, speckle noise, and so on around the boundary plane in the three-dimensional image. The general convergence index of a gradient vector to the plane of interest is defined and convergence degree which is the output of the filter is defined as the average of convergence indices over the region of support. The theoretical output of this filter does not depend on the magnitude of the contrast and the width of the boundary. Fundamental response characteristics of the proposed filter have been analyzed theoretically. Moreover, the proposed method is applied to artificial images and MRI images, and the effectiveness of this method is shown. Correspondence between the grand truth and the detected boundary plane is calculated for evaluation. The correspondence of proposed method is higher than that of conventional methods, which shows the effectiveness of proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | convergence index / three-dimensional image / boundary plane / image processing |
| Paper # | MI2001-36 |
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| Conference Information | |
| Committee | MI |
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| Conference Date | 2001/9/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | Three Dimensional Edge Detection with Robustness against Contrast Variation Based on Gradient Vector Orientation |
| Sub Title (in English) | |
| Keyword(1) | convergence index |
| Keyword(2) | three-dimensional image |
| Keyword(3) | boundary plane |
| Keyword(4) | image processing |
| 1st Author's Name | Yoshihiro HAGIHARA |
| 1st Author's Affiliation | Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture & Technology() |
| 2nd Author's Name | Zeng XIAO YAN |
| 2nd Author's Affiliation | Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture & Technology |
| 3rd Author's Name | Akinobu SHIMIZU |
| 3rd Author's Affiliation | Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture & Technology |
| 4th Author's Name | Hidefumi KOBATAKE |
| 4th Author's Affiliation | Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture & Technology |
| Date | 2001/9/7 |
| Paper # | MI2001-36 |
| Volume (vol) | vol.101 |
| Number (no) | 310 |
| Page | pp.pp.- |
| #Pages | 6 |
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