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Visualization of diffusion anisotropy using colored superquadric glyphs in DT-MRI
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hwang, Jonghee Han, Yanjun Park, Hyun Wook |
| Copyright Year | 2006 |
| Abstract | J. Hwang, Y. Han, H. Park Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea, Republic of Background: The goal of acquiring diffusion weighted images (DWIs) and calculating tensors is to analyze the structural information of the white matter in the human brain. Thus, it is important to effectively visualize the calculated information. However, it is a difficult process to visualize the direction and magnitude of diffusion tensors in a two dimensional (2D) screen [1]. Although there are several methods to visualize the tensors using cuboid, ellipsoid, cylinder, and superquadric tensor glyphs [2], the representation methods using glyphs alone are not clear enough to distinguish the directions of the tensors [3]. The RGB color sphere is generally used to help clarify the tensor directions but it cannot solve the directional ambiguity problem, which is the difficulty of distinguishing two vectors having 90° difference with each other (Fig.1), because it can assign the same colors to some vectors having 90° difference. Therefore, we propose a color sphere map which resolves the directional ambiguity problem while also fulfilling two requirements for color coding of the tensors, which are antipodal symmetry and uniform color difference. |
| Starting Page | 2756 |
| Ending Page | 2756 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://koasas.kaist.ac.kr/bitstream/10203/5431/1/85%20%5BISMRM%5DVisualization%20of%20Diffusion%20Anisotropy%20Using%20Colored%20Superquadric%20Glyphs%20in%20DT-MRI.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
