摘要： 介绍了一个新的基于纹理映射及Shear-warp变换的快速体绘制方法。所提出的方法吸收了纹理映射方法的长处，通过纹理硬件的加速，并在纹理装载时提出了可适应性的纹理分割方法，使该算法不受纹理内存的限制。在进行纹理映射时，通过剪切（Shear）变换和三维图象的分割，加快给制速度。与多种经典的快速体绘制方法进行测试比较，该方法达到了交互的效果和更高的绘制速度。

关键词: 体绘制, 纹理映射, Shear-warp变换

Abstract: This paper introduces a new quick time way of volume rendering based on 3D texture mapping and Shear-waip transformation.Our method assimilates the advantages of 3D texture mapping through the acceletation of texture hardware.What is more, it will not be limited by internal texture memory under adaptable segmentation when loading,time of texture mapping traditional way to consider the series polygons which are verical with sight, has not been adapted, but to collect texture images through shear transformation without calculating the intersection of them, and so accelerate rendering speed.Otherwise, through the segmentation of 3D images, the operation of certainning the bricks which contain the object can decrease the scale of texture datasets to speed up the volume rendering.

中图分类号: 

• TP391.4