Title :
PLIC: bridging the gap between streamlines and LIC
Author :
Verma, Vivek ; Kao, David ; Pang, Alex
Author_Institution :
Dept. of Comput. Sci., California Univ., Santa Cruz, CA, USA
Abstract :
This paper explores mapping strategies for generating LIC-like images from streamlines and streamline-like images from LIC. The main contribution of this paper is a technique which we call pseudo-LIC or PLIC. By adjusting a small set of key parameters, PLIC can generate flow visualizations that span the spectrum of streamline-like to LIC-like images. Among the advantages of PLIC are: image quality comparable with LIC, performance speedup over LIC, use of a template texture that is independent of the size of the flow field, handles the problem of multiple streamlines occupying the same pixel in image space, reduced aliasing, applicability to time varying data sets, and variable speed animation.
Keywords :
computer animation; data visualisation; flow visualisation; image texture; physics computing; LIC; PLIC; aliasing; flow visualizations; image quality; mapping strategies; performance speedup; pixel; pseudo-line integral convolution; streamline-like images; template texture; time varying data sets; variable speed animation; Animation; Computer displays; Computer science; Convolution; Data flow computing; Data visualization; NASA; Particle tracking; Physics computing; Streaming media;
Conference_Titel :
Visualization '99. Proceedings
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-5897-X
DOI :
10.1109/VISUAL.1999.809906