Animating flow fields: rendering of oriented line integral convolution

Author

Wegenkittl, R. ; Gröller, E. ; Purgathofer, W.

Author_Institution

Inst. of Comput. Graphics, Tech. Univ. Wien, Austria

fYear

1997

fDate

5-6 Jun 1997

Firstpage

15

Lastpage

21

Abstract

Line Integral Convolution (LIC) is a common approach for the visualisation of 2D vector fields. It is well suited for visualizing the direction of a flow field, but it gives no information about the orientation of the underlying vectors. We introduce Oriented Line Integral Convolution (OLIC), where direction as well as orientation are encoded within the resulting image. This is achieved by using a sparse input texture and a ramp like (anisotropic) convolution kernel. This method can be used for animations, whereby the computation of so called pixel traces fastens the calculation process. Various OLICs illustrating simple and real world vector fields are shown

Keywords

computational geometry; computer animation; data visualisation; flow visualisation; rendering (computer graphics); 2D vector field visualization; LIC; OLIC; anisotropic convolution kernel; flow field animation; oriented line integral convolution rendering; pixel traces; ramp like convolution kernel; real world vector fields; sparse input texture; Animation; Anisotropic magnetoresistance; Computer graphics; Convolution; Image segmentation; Kernel; Pixel; Rendering (computer graphics); Streaming media; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Animation '97

Conference_Location

Geneva

ISSN

1087-4844

Print_ISBN

0-8186-7984-0

Type

conf

DOI

10.1109/CA.1997.601035

Filename

601035