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Hairy Slices II: Depth Cues for Visualizing 3D Streamlines Through Cutting Planes
Author(s) -
Stevens Andrew H.,
Ware Colin,
Butkiewicz Thomas,
Rogers David,
Abram Greg
Publication year - 2020
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.13960
Subject(s) - depth perception , streamlines, streaklines, and pathlines , stereoscopy , kinetic depth effect , computer vision , artificial intelligence , computer science , perception , 2d to 3d conversion , motion (physics) , structure from motion , point (geometry) , orientation (vector space) , optical flow , computer graphics (images) , motion perception , geometry , mathematics , physics , thermodynamics , neuroscience , image (mathematics) , biology
Abstract Visualizing 3D vector fields is challenging because of occlusion problems and the difficulty of providing depth cues that adequately support the perception of direction of flow lines in 3D space. One of the depth cues that has proven most valuable for the perception of other kinds of 3D data, notably 3D networks and 3D point clouds, is structure‐from‐motion (also called the Kinetic Depth Effect); another powerful depth cue is stereoscopic viewing. We carried out an experiment of the perception of direction for short streamlines passing through a cutting plane. The conditions included viewing with and without structure‐from‐motion and with and without stereoscopic depth. Conditions also include comparing streamtubes to lines. The results show that for this particular task, stereo provided an effective depth cue, but structure‐from‐motion did not. Ringed streamtubes and streamcones provided good 3D direction information, even without stereoscopic viewing. We conclude with guidelines for viewing slices through vector fields.

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