Volume Rendering

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S. Frey, F. Sadlo, T. Ertl:

Explorable Volumetric Depth Images from Raycasting

In Proceedings of 26th SIBGRAPI Conference on Graphics, Patterns and Images, pp. 123–130, 2013.

Abstract

View-dependent image-based rendering techniques have become increasingly popular as they combine the high quality of images with the explorability of interactive techniques. However, in the context of volume rendering, previous approaches suffer from various shortcomings, including the limitation to surfaces, expensive generation, and insufficient occlusion and motion parallax impairing depth perception. In this paper, we propose Volumetric Depth Images (VDI) to overcome these issues for view-dependent volume visualization by an extension of the Layered Depth Image (LDI) approach. Instead of only saving for each view ray of one camera configuration the depth and color values for a set of surfaces, as in LDIs, VDIs store so-called super segments, each consisting of a depth range as well as composited color and opacity. This compact representation is independent from the structure of the original data and can be generated by slight modification of ray casters with very low overhead. VDIs can be rendered efficiently at high quality with arbitrary camera configurations by means of proxy frustum geometry and an efficient depth ordering scheme. When viewing the scene from the initial view point, VDIs produce results identical to the original ray casting. As demonstrated by means of a prototype implementation and data from different fields, our approach can be useful for preview rendering and a-priori analysis in in-situ contexts among others.

Available Files

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Publications

2023
Reviewed Journal Papers
R. Alghamdi, T. Müller, A. Jaspe‐Villanueva, M. Hadwiger, F. Sadlo:
Doppler Volume Rendering: A Dynamic, Piecewise Linear Spectral Representation for Visualizing Astrophysics Simulations
Computer Graphics Forum, vol. 42, no. 3, pp. 39–49, 2023.
Available files: [BibTeX] [DOI] [Details]

2015
Reviewed Journal Papers
M. Bußler, T. Ertl, F. Sadlo:
Photoelasticity Raycasting
Computer Graphics Forum, vol. 34, no. 3, pp. 141–150, 2015.
Available files: [BibTeX] [DOI] [PDF] [Details]

Reviewed Conference Papers
S. Frey, F. Sadlo, T. Ertl:
Balanced Sampling and Compression for Remote Visualization
In Proceedings of SIGGRAPH Asia Symposium on Visualization in High Performance Computing, pp. 1:1–1:4, 2015.
Available files: [BibTeX] [DOI] [PDF] [Details]

Book Chapters and Other Publications
T. Bolemann, M. Üffinger, F. Sadlo, T. Ertl, C.-D. Munz:
Direct Visualization of Piecewise Polynomial Data
In IDIHOM: Industrialization of High-Order Methods - A Top-Down Approach, Springer International Publishing, pp. 535–550, 2015.
Available files: [BibTeX] [DOI] [Details]

2014
Reviewed Journal Papers
M. Ament, F. Sadlo, C. Dachsbacher, D. Weiskopf:
Low-Pass Filtered Volumetric Shadows
IEEE Transactions on Visualization and Computer Graphics, vol. 20, no. 12, pp. 2437–2446, 2014.
Available files: [BibTeX] [DOI] [PDF] [Details]

S. Frey, F. Sadlo, K.-L. Ma, T. Ertl:
Interactive Progressive Visualization with Space-Time Error Control
IEEE Transactions on Visualization and Computer Graphics, vol. 20, no. 12, pp. 2397–2406, 2014.
Available files: [BibTeX] [DOI] [PDF] [Details]

D. Koerner, J. Portsmouth, F. Sadlo, T. Ertl, B. Eberhardt:
Flux-Limited Diffusion for Multiple Scattering in Participating Media
Computer Graphics Forum, vol. 33, no. 6, pp. 178–189, 2014.
Available files: [BibTeX] [DOI] [PDF] [Details]

Reviewed Conference Papers
O. Fernandes, S. Frey, F. Sadlo, T. Ertl:
Space-Time Volumetric Depth Images for In-Situ Visualization
In Proceedings of IEEE 4th Symposium on Large Data Analysis and Visualization (LDAV), pp. 59–65, 2014.
Available files: [BibTeX] [DOI] [PDF] [Details]

2013
Reviewed Journal Papers
M. Ament, F. Sadlo, D. Weiskopf:
Ambient Volume Scattering
IEEE Transactions on Visualization and Computer Graphics, vol. 19, no. 12, pp. 2936–2945, 2013.
Available files: [BibTeX] [DOI] [PDF] [Details]

Reviewed Conference Papers
S. Frey, F. Sadlo, T. Ertl:
Explorable Volumetric Depth Images from Raycasting
In Proceedings of 26th SIBGRAPI Conference on Graphics, Patterns and Images, pp. 123–130, 2013.
Available files: [BibTeX] [DOI] [PDF] [Details]

2012
Reviewed Journal Papers
G. K. Karch, F. Sadlo, D. Weiskopf, C.-D. Munz, T. Ertl:
Visualization of Advection-Diffusion in Unsteady Fluid Flow
Computer Graphics Forum, vol. 31, no. 3, pp. 1105–1114, 2012.
Available files: [BibTeX] [DOI] [PDF] [Technical Addendum] [Video] [Details]

Reviewed Conference Papers
G. M. Machado, F. Sadlo, T. Müller, D. Müller, T. Ertl:
Visualizing Solar Dynamics Data
In Proceedings of International Workshop on Vision, Modeling and Visualization (VMV), pp. 95–102, 2012.
Available files: [BibTeX] [DOI] [PDF] [Technical Addendum] [Video] [Details]

Book Chapters and Other Publications
G. K. Karch, F. Sadlo, D. Weiskopf, C. D. Hansen, G.-S. Li, T. Ertl:
Dye-Based Flow Visualization
Computing in Science and Engineering, vol. 14, no. 6, pp. 80–86, 2012.
Available files: [BibTeX] [DOI] [Details]

2011
Book Chapters and Other Publications
F. Sadlo, M. Üffinger, C. Pagot, D. Osmari, J. Comba, T. Ertl, C.-D. Munz, D. Weiskopf:
Visualization of Cell-Based Higher-Order Fields
Computing in Science and Engineering, vol. 13, no. 3, pp. 84–91, 2011.
Available files: [BibTeX] [DOI] [Details]