医学CT图象中多组织剖视绘制方法

提出了一种基于面绘制模型的多组织绘制方法：剖视绘制，并在微机环境下以动物树獭的 Ｃ Ｔ图象为例进行了实验。实验证明，与目前基于直接体绘制模型的方法相比，新方法具有易于实现、绘制速度快、操作简单等特点，是微机环境下实现多组织剖视绘制的一种可行实用的方法。

Fast Rendering of Multi Structures in Medical CT Images

Existing methods appear to be unable to meet the requirements of interactive operation in clinic in PC environment. We propose a method for fast and good quality rendering of multi structures. Existing methods use volume rendering which requires too much overhead. Different from them, we use surface rendering. Our algorithm is based on marching cubes. Before marching cubes can be used we have to employ 2D image preprocessing. We discuss this preprocessing in much detail in section 2. The core of section 2 is subsection 2.2, whose core in turn is subsubsection 2.2(3). In subsubsection 2.2(3) we discuss in detail rotation cutting (Figs.3, 4) and shift cutting (Fig.6). Using the CT images of an animal, we prove preliminarily that the method we propose does possess advantages as compared with existing methods.