Skip to Main content Skip to Navigation
New interface
Journal articles

CAST: Effective and Efficient User Interaction for Context-Aware Selection in 3D Particle Clouds

Abstract : We present a family of three interactive Context-Aware Selection Techniques (CAST) for the analysis of large 3D particle datasets. For these datasets, spatial selection is an essential prerequisite to many other analysis tasks. Traditionally, such interactive target selection has been particularly challenging when the data subsets of interest were implicitly defined in the form of complicated structures of thousands of particles. Our new techniques SpaceCast, TraceCast, and PointCast improve usability and speed of spatial selection in point clouds through novel context-aware algorithms. They are able to infer a user's subtle selection intention from gestural input, can deal with complex situations such as partially occluded point clusters or multiple cluster layers, and can all be fine-tuned after the selection interaction has been completed. Together, they provide an effective and efficient tool set for the fast exploratory analysis of large datasets. In addition to presenting Cast, we report on a formal user study that compares our new techniques not only to each other but also to existing state-of-the-art selection methods. Our results show that Cast family members are virtually always faster than existing methods without tradeoffs in accuracy. In addition, qualitative feedback shows that PointCast and TraceCast were strongly favored by our participants for intuitiveness and efficiency.
Document type :
Journal articles
Complete list of metadata

Cited literature [58 references]  Display  Hide  Download
Contributor : Isenberg Tobias Connect in order to contact the contributor
Submitted on : Friday, July 17, 2015 - 1:04:10 PM
Last modification on : Tuesday, October 25, 2022 - 4:21:06 PM
Long-term archiving on: : Sunday, October 18, 2015 - 11:02:11 AM


Files produced by the author(s)





Lingyun Yu, Konstantinos Efstathiou, Petra Isenberg, Tobias Isenberg. CAST: Effective and Efficient User Interaction for Context-Aware Selection in 3D Particle Clouds. IEEE Transactions on Visualization and Computer Graphics, 2016, 22 (1), pp.886-895. ⟨10.1109/TVCG.2015.2467202⟩. ⟨hal-01178051⟩



Record views


Files downloads