Enhanced Unsteady Flow Visualization

In this paper, we present a high-quality texture-based enhanced approach for the visualization of unsteady vector fields. It adopts a scheme of streamline enhancement by applying a ID high-pass filter to flow textures along the orthogonal flow direction to enhance the intensity contrast among streamlines and improve the image quality of flow textures. A scheme of boundary supplement is also used to modulate the characteristic of particles flow. Using the color mapping of some scalar properties, such as magnitude, orientation and curvature, it is capable of displaying many properties of vector field which are helpful to analyze the features and topological flow patterns. It is capable of achieving a real-time rendering performance on a personal computer by using current graphics hardware.