论文部分内容阅读
本文提出了一种快速显示三维医学体数据的光线投射方法，方法原型是基于以图像空间为序的体显示算法，但在物体空间实施加速方法。在本文中，首先我们简要介绍了图像空间为序的休绘制算法原理及步骤。接着，叙述了如何利用物体空间的包围体方法来减少追踪光线数量。最后，给出了该算法用于显示同一医学体数据内多器官的研究结果。
This paper presents a ray projection method for quickly displaying 3D medical volume data. The method prototype is based on the volume display algorithm in the order of the image space, but implements the acceleration method in the object space. In this paper, we first briefly introduce the principles and steps of the algorithm for the sequential drawing of image space. Then, it describes how to use the object space surround method to reduce the amount of tracking light. Finally, the results of this algorithm for displaying multiple organs in the same medical volume data are given.