Authors:
Mauricio Aristizabal
1
;
John Congote
2
;
Alvaro Segura
3
;
Aitor Moreno
3
;
Harbil Arregui
3
and
Oscar Ruiz
1
Affiliations:
1
EAFIT University, Colombia
;
2
EAFIT University and Vicomtech Research Center, Colombia
;
3
Vicomtech Research Center, Spain
Keyword(s):
Line Integral Convolution, Hierarchical Integration, Flow Visualization, WebGL.
Related
Ontology
Subjects/Areas/Topics:
Abstract Data Visualization
;
Computer Vision, Visualization and Computer Graphics
;
Flow Visualization
;
General Data Visualization
;
Gpu-Based Visualization
;
Information and Scientific Visualization
;
Internet, Web and Security Visualization
;
Spatial Data Visualization
;
Vector/Tensor Field Visualization
Abstract:
Visualization of vector fields plays an important role in research activities nowadays. Increasing web applications allow a fast, multi-platform and multi-device access to data. As a result, web applications must be optimized in order to be performed heterogeneously as well as on high-performance as on low capacity devices. This paper presents a hardware-accelerated scheme for integration-based flow visualization techniques, based on a hierarchical integration procedure which reduces the computational effort of the algorithm from linear to logarithmic, compared to serial integration methodologies. The contribution relies on the fact that the optimization is only implemented using the graphics application programming interface (API), instead of requiring additional APIs or plug-ins. This is achieved by using images as data storing elements instead of graphical information matrices. A case study in oceanic currents is implemented.