Simulation and display of 3D flow fields by an improved texture-based method

摘要

Texture-based method is a very promising way to simulate and display 3D flow fields. However, direction ambiguous, incapable of showing vector magnitude and high time-consuming are its three main problems. This paper gives some techniques to solve them. First, we employ the oriented and phase shifted filter kernel to create continuous and smooth motion of texture images, with the speed at each pixel proportional to its corresponding vector magnitude. Second, we derive "importance map" of texture image by the topological structure of a flow field and accelerate the generation of a texture image according to the "importance map". Experimental results show that these techniques are available and efficient.