Information
- Publication Type: Technical Report
- Workgroup(s)/Project(s): not specified
- Date: March 1997
- Number: TR-186-2-97-07
- Keywords: vector field visualization, Line Integral Convolution
Abstract
Oriented Line Integral Convolution (OLIC) illustrates
flow fields by convolving a sparse texture with an anisotropic
convolution kernel. The kernel is aligned to the underlying flow of
the vector field. OLIC does not only show the direction of the flow
but also its orientation. This paper presents Fast Rendering of Oriented
Line Integral Convolution (FROLIC), which is approximately two orders of
magnitude faster than OLIC. Costly convolution operations as done in
OLIC are replaced in FROLIC by approximating a streamlet through a set
of disks with varying intensity. The issue of overlapping streamlets
is discussed. Two efficient animation techniques for animating FROLIC
images are described. FROLIC has been implemented as a Java applet.
This allows researchers from various disciplines (typically with
inhomogenous hardware environments) to conveniently explore and
investigate analytically defined 2D vector fields.
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BibTeX
@techreport{Wegenkittl-97-FOL,
title = "Fast Oriented Line Integral Convolution for Vector
Field Visualization via the Internet",
author = "Rainer Wegenkittl and Eduard Gr\"{o}ller",
year = "1997",
abstract = "Oriented Line Integral Convolution (OLIC) illustrates flow
fields by convolving a sparse texture with an anisotropic
convolution kernel. The kernel is aligned to the underlying
flow of the vector field. OLIC does not only show the
direction of the flow but also its orientation. This paper
presents Fast Rendering of Oriented Line Integral
Convolution (FROLIC), which is approximately two orders of
magnitude faster than OLIC. Costly convolution operations as
done in OLIC are replaced in FROLIC by approximating a
streamlet through a set of disks with varying intensity. The
issue of overlapping streamlets is discussed. Two efficient
animation techniques for animating FROLIC images are
described. FROLIC has been implemented as a Java applet.
This allows researchers from various disciplines (typically
with inhomogenous hardware environments) to conveniently
explore and investigate analytically defined 2D vector
fields.",
month = mar,
number = "TR-186-2-97-07",
address = "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
institution = "Institute of Computer Graphics and Algorithms, Vienna
University of Technology ",
note = "human contact: technical-report@cg.tuwien.ac.at",
keywords = "vector field visualization, Line Integral Convolution",
URL = "https://www.cg.tuwien.ac.at/research/publications/1997/Wegenkittl-97-FOL/",
}