| Presentation | 2005-01-21 A Study on Flattening Virtual Organs Based on Surface Normals in Generating Their Unfolded Views Trung Dung TRUONG, Takayuki KITASAKA, Kensaku MORI, Yasuhito SUENAGA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we describe a method for generating unfolded views of virtual organs based on deformation of volumetric images. Unfolded views are very useful for diagnosis because they can visualize at a glance the entire wall of an organ that has a large cavity. Our previous method uses a set of hexahedra to approximate the shape of the organ which is then stretched over a plane to obtain a planar stretched shape. However, it is quite difficult to stretch the approximate shape consisting of hexahedra to a planar shape. Also, manual intervention is required for modification of external forces applied to the shape each time it deforms. The method we propose here uses surface normals of the stretched shape to automatically determine the external forces and applies them to the shape to flatten it. We applied our method to eleven cases of abdominal X-ray CT images. The experimental results showed that our method could flatten virtual organs satisfactorily and generate their unfolded views faster than the previous method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | virtual unfolding / volumetric image / surface normal / deformation / visualization |
| Paper # | MI2004-53 |
| Date of Issue |
| Conference Information | |
| Committee | MI |
|---|---|
| Conference Date | 2005/1/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Medical Imaging (MI) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Flattening Virtual Organs Based on Surface Normals in Generating Their Unfolded Views |
| Sub Title (in English) | |
| Keyword(1) | virtual unfolding |
| Keyword(2) | volumetric image |
| Keyword(3) | surface normal |
| Keyword(4) | deformation |
| Keyword(5) | visualization |
| 1st Author's Name | Trung Dung TRUONG |
| 1st Author's Affiliation | Graduate School of Information Science, Nagoya University() |
| 2nd Author's Name | Takayuki KITASAKA |
| 2nd Author's Affiliation | Graduate School of Information Science, Nagoya University |
| 3rd Author's Name | Kensaku MORI |
| 3rd Author's Affiliation | Graduate School of Information Science, Nagoya University |
| 4th Author's Name | Yasuhito SUENAGA |
| 4th Author's Affiliation | Graduate School of Information Science, Nagoya University |
| Date | 2005-01-21 |
| Paper # | MI2004-53 |
| Volume (vol) | vol.104 |
| Number (no) | 579 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |