Moment-Based Opacity Optimization

dc.contributor.authorZeidan, Mahmouden_US
dc.contributor.authorRapp, Tobiasen_US
dc.contributor.authorPeters, Christophen_US
dc.contributor.authorDachsbacher, Carstenen_US
dc.contributor.editorFrey, Steffen and Huang, Jian and Sadlo, Filipen_US
dc.date.accessioned2020-05-24T13:24:36Z
dc.date.available2020-05-24T13:24:36Z
dc.date.issued2020
dc.description.abstractGeometric structures such as points, lines, and surfaces play a vital role in scientific visualization. However, these visualizations frequently suffer from visual clutter that hinders the inspection of important features behind dense but less important features. In the past few years, geometric cluttering and occlusion avoidance has been addressed in scientific visualization with various approaches such as opacity optimization techniques. In this paper, we present a novel approach for opacity optimization based on recent state-of-the-art moment-based techniques for signal reconstruction. In contrast to truncated Fourier series, momentbased reconstructions of feature importance and optical depth along view rays are highly accurate for sparse regions but also plausible for densely covered regions. At the same time, moment-based methods do not suffer from ringing artifacts. Moreover, this representation enables fast evaluation and compact storage, which is crucial for per-pixel optimization especially for large geometric structures. We also present a fast screen space filtering approach for optimized opacities that works directly on moment buffers. This filtering approach is suitable for real-time visualization applications, while providing comparable quality to object space smoothing. Its implementation is independent of the type of geometry such that it is general and easy to integrate. We compare our technique to recent state of the art techniques for opacity optimization and apply it to real and synthetic data sets in various applications.en_US
dc.description.sectionheadersGraphics
dc.description.seriesinformationEurographics Symposium on Parallel Graphics and Visualization
dc.identifier.doi10.2312/pgv.20201072
dc.identifier.isbn978-3-03868-107-6
dc.identifier.issn1727-348X
dc.identifier.pages25-33
dc.identifier.urihttps://doi.org/10.2312/pgv.20201072
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/pgv20201072
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/]
dc.subjectI.6.9 [Computer Graphics]
dc.subjectPicture/Image Generation
dc.subjectViewing algorithms
dc.titleMoment-Based Opacity Optimizationen_US
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