Title |
Verifying Volume Rendering Using Discretization Error Analysis
|
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Published in |
IEEE Transactions on Visualization and Computer Graphics, November 2013
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DOI | 10.1109/tvcg.2013.90 |
Pubmed ID | |
Authors |
Tiago Etiene, Daniel Jonsson, Timo Ropinski, Carlos Scheidegger, Joao L. D. Comba, Luis Gustavo Nonato, Robert M. Kirby, Anders Ynnerman, Claudio T. Silva |
Abstract |
We propose an approach for verification of volume rendering correctness based on an analysis of the volume rendering integral, the basis of most DVR algorithms. With respect to the most common discretization of this continuous model (Riemann summation), we make assumptions about the impact of parameter changes on the rendered results and derive convergence curves describing the expected behavior. Specifically, we progressively refine the number of samples along the ray, the grid size, and the pixel size, and evaluate how the errors observed during refinement compare against the expected approximation errors. We derive the theoretical foundations of our verification approach, explain how to realize it in practice, and discuss its limitations. We also report the errors identified by our approach when applied to two publicly available volume rendering packages. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 33 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 12 | 36% |
Professor | 3 | 9% |
Other | 3 | 9% |
Researcher | 3 | 9% |
Professor > Associate Professor | 3 | 9% |
Other | 6 | 18% |
Unknown | 3 | 9% |
Readers by discipline | Count | As % |
---|---|---|
Computer Science | 19 | 58% |
Engineering | 3 | 9% |
Arts and Humanities | 2 | 6% |
Medicine and Dentistry | 2 | 6% |
Agricultural and Biological Sciences | 1 | 3% |
Other | 2 | 6% |
Unknown | 4 | 12% |