Caerbannog Point Clouds

Description

The Caerbannog Point Clouds provide point-sampled 3D models occluded in clouds of points. We synthesized the 3D point clouds from polygonal models, point-sampling the models and surrounding them in a point cloud such that the shape of the model is occluded in any 2D projection. We obscure our model-of-interest by repeatedly surrounding it with an amorphous cloud of points, giving the overall point cloud a structure of organic nature, like that of shrubbery. In a user study, participants were significantly better at identifying the models when visualized as 3D scatterplots under rotation than in axis-aligned 2D scatterplots. We provide three point-clouds, both occluded and unoccluded: the Stanford bunny, Utah Teapot, and OSG Cow.

Resources

Name Format Description Link
5 Point-sampled Utah Teapot occluded in a point cloud https://data.nrel.gov/system/files/153/teapot_in_shrubbery.csv
5 Point-sampled OSG cow, unoccluded. https://data.nrel.gov/system/files/153/cow.csv
5 Point-sampled OSG cow occluded in a point cloud. https://data.nrel.gov/system/files/153/cow_in_shrubbery.csv
5 Point-sampled Stanford bunny, unoccluded. https://data.nrel.gov/system/files/153/bunny.csv
5 Point-sampled Stanford bunny occluded in a point cloud. https://data.nrel.gov/system/files/153/bunny_in_shrubbery.csv
5 Point-sampled Utah teapot, unoccluded. https://data.nrel.gov/system/files/153/teapot.csv

Tags

  • visual-perception
  • data-visualizations
  • data-analysis
  • scatterplots

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