Abstract
The benefits of using advanced illumination models in volume visualization have been demonstrated by many researchers. Interactive volume rendering incorporated with advanced lighting has been achieved with GPU acceleration for regular-grid volume data, making volume visualization even more appealing as a tool for 3D data exploration. This paper presents an interactive illumination strategy, which is specially designed and optimized for volume visualization of unstructured-grid data. The basis of the design is a partial differential equation based illumination model to simulate the light propagation, absorption, and scattering within the volumetric medium. In particular, a two-level scheme is introduced to overcome the challenges presented by unstructured grids. Test results show that the added illumination effects such as global shadowing and multiple scattering not only lead to more visually pleasing visualization, but also greatly enhance the perception of the depth information and complex spatial relationships for features of interest in the volume data. This volume visualization enhancement is introduced at a time when unstructured grids are becoming increasingly popular for a variety of scientific simulation applications.
| Original language | English (US) |
|---|---|
| Title of host publication | 2015 IEEE Pacific Visualization Symposium, PacificVis 2015 - Proceedings |
| Editors | Shigeo Takahashi, Shixia Liu, Gerik Scheuermann |
| Publisher | IEEE Computer Society |
| Pages | 239-246 |
| Number of pages | 8 |
| Volume | 2015-July |
| ISBN (Electronic) | 9781467368797 |
| DOIs | |
| State | Published - Jan 1 2015 |
| Event | 2015 8th IEEE Pacific Visualization Symposium, PacificVis 2015 - Hangzhou, China Duration: Apr 14 2015 → Apr 17 2015 |
Other
| Other | 2015 8th IEEE Pacific Visualization Symposium, PacificVis 2015 |
|---|---|
| Country | China |
| City | Hangzhou |
| Period | 4/14/15 → 4/17/15 |
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Keywords
- I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism - Color
- I.3.8 [Computer Graphics]: Applications
- shading
- shadowing
- texture
ASJC Scopus subject areas
- Computer Graphics and Computer-Aided Design
- Computer Vision and Pattern Recognition
- Hardware and Architecture
- Software
Cite this
Advanced lighting for unstructured-grid data visualization. / Shih, Min; Zhang, Yubo; Ma, Kwan-Liu.
2015 IEEE Pacific Visualization Symposium, PacificVis 2015 - Proceedings. ed. / Shigeo Takahashi; Shixia Liu; Gerik Scheuermann. Vol. 2015-July IEEE Computer Society, 2015. p. 239-246 7156383.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Advanced lighting for unstructured-grid data visualization
AU - Shih, Min
AU - Zhang, Yubo
AU - Ma, Kwan-Liu
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The benefits of using advanced illumination models in volume visualization have been demonstrated by many researchers. Interactive volume rendering incorporated with advanced lighting has been achieved with GPU acceleration for regular-grid volume data, making volume visualization even more appealing as a tool for 3D data exploration. This paper presents an interactive illumination strategy, which is specially designed and optimized for volume visualization of unstructured-grid data. The basis of the design is a partial differential equation based illumination model to simulate the light propagation, absorption, and scattering within the volumetric medium. In particular, a two-level scheme is introduced to overcome the challenges presented by unstructured grids. Test results show that the added illumination effects such as global shadowing and multiple scattering not only lead to more visually pleasing visualization, but also greatly enhance the perception of the depth information and complex spatial relationships for features of interest in the volume data. This volume visualization enhancement is introduced at a time when unstructured grids are becoming increasingly popular for a variety of scientific simulation applications.
AB - The benefits of using advanced illumination models in volume visualization have been demonstrated by many researchers. Interactive volume rendering incorporated with advanced lighting has been achieved with GPU acceleration for regular-grid volume data, making volume visualization even more appealing as a tool for 3D data exploration. This paper presents an interactive illumination strategy, which is specially designed and optimized for volume visualization of unstructured-grid data. The basis of the design is a partial differential equation based illumination model to simulate the light propagation, absorption, and scattering within the volumetric medium. In particular, a two-level scheme is introduced to overcome the challenges presented by unstructured grids. Test results show that the added illumination effects such as global shadowing and multiple scattering not only lead to more visually pleasing visualization, but also greatly enhance the perception of the depth information and complex spatial relationships for features of interest in the volume data. This volume visualization enhancement is introduced at a time when unstructured grids are becoming increasingly popular for a variety of scientific simulation applications.
KW - I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism - Color
KW - I.3.8 [Computer Graphics]: Applications
KW - shading
KW - shadowing
KW - texture
UR - http://www.scopus.com/inward/record.url?scp=84942233307&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84942233307&partnerID=8YFLogxK
U2 - 10.1109/PACIFICVIS.2015.7156383
DO - 10.1109/PACIFICVIS.2015.7156383
M3 - Conference contribution
VL - 2015-July
SP - 239
EP - 246
BT - 2015 IEEE Pacific Visualization Symposium, PacificVis 2015 - Proceedings
A2 - Takahashi, Shigeo
A2 - Liu, Shixia
A2 - Scheuermann, Gerik
PB - IEEE Computer Society
ER -