Enhanced Real-time 2D Flow Visualization Based on Flow Lines Enhancement
基于矢量线强化的增强型2维流场实时绘制

Considering that some helpful scalar properties to vector visualization with feature analysis,in this paper we present an enhanced realtime 2D flow visualization algorithm based on flow lines enhancement.Through the color mapping of some scalar properties,such as velocity,angle and curvature,it can not only reflect flow direction,but also display many properties of vector field which are helpful to analyze the features and topology of vector fields.In order to enhance the contrast among flow lines and improve the rendering image quality,it adopts a scheme of enhancing flow lines which applies one dimensional high-pass filter to convolution texture along the direction perpendicular to flow.By using the programmable ability of modern GPVS,the algorithm can achieve realtime rendering performance on Personal Computers.