Animation of Orthogonal Texture-Based Vector Field Visualization
This is a Eurographics/IEEE VGTC Symposium on Visualization (2007)
paper by Sven Bachthaler and Daniel Weiskopf.
This paper is available for download.
This paper introduces orthogonal vector field visualization on 2D manifolds: a representation by lines that are
perpendicular to the input vector field. Line patterns are generated by line integral convolution (LIC). This visu-
alization is combined with animation based on motion along the vector field. This decoupling of the line direction
from the direction of animation allows us to choose the spatial frequencies along the direction of motion inde-
pendently from the length scales along the LIC line patterns. Vision research indicates that local motion detectors
are tuned to certain spatial frequencies of textures, and the above decoupling enables us to generate spatial fre-
quencies optimized for motion perception. In addition, a filtering process is described to achieve a consistent and
temporally coherent animation of the orthogonal vector field visualization. We present respective visualization
algorithms for 2D planar vector fields and tangential vector fields on curved surfaces, and demonstrate that those
algorithms lend themselves to efficient and interactive GPU implementations.
Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Picture/Image Generation
I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism
Last modified: Mar. 24th, 2007
by Sven Bachthaler