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User-defined feature comparison for vector field ensembles

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Abstract

Most of the existing approaches to visualize vector field ensembles are to reveal the uncertainty of individual variables, for example, statistics, variability, etc. However, a user-defined derived feature like vortex or air mass is also quite significant, since they make more sense to domain scientists. In this paper, we present a new framework to extract user-defined derived features from different simulation runs. Specially, we use a detail-to-overview searching scheme to help extract vortex with a user-defined shape. We further compute the geometry information including the size, the geo-spatial location of the extracted vortexes. We also design some linked views to compare them between different runs. At last, the temporal information such as the occurrence time of the feature is further estimated and compared. Results show that our method is capable of extracting the features across different runs and comparing them spatially and temporally.

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Acknowledgments

This work is supported by the Strategic Priority Research Program Climate Change: Carbon Budget and Relevant Issues of the Chinese Academy of Sciences Grant No. XDA05040205 and NSFC No. 61170204. This work is also partially supported by NSFC Key Project No. 61232012.

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Authors and Affiliations

  1. Key Laboratory of Machine Perception (Ministry of Education), School of Electronics Engineering and Computer Science (EECS), Peking University, Beijing, China

    Richen Liu & Xiaoru Yuan

  2. Argonne National Laboratory, Argonne, IL, USA

    Hanqi Guo

  3. Beijing Engineering Technology Research Center of Virtual Simulation and Visualization, Peking University, Beijing, China

    Xiaoru Yuan

Authors
  1. Richen Liu
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  2. Hanqi Guo
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  3. Xiaoru Yuan
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Corresponding author

Correspondence to Xiaoru Yuan.

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Liu, R., Guo, H. & Yuan, X. User-defined feature comparison for vector field ensembles. J Vis 20, 217–229 (2017). https://doi.org/10.1007/s12650-016-0388-0

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  • DOI: https://doi.org/10.1007/s12650-016-0388-0

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