摘 要 体绘制算法是一种较好的三维重建显示算法,但针对超声医学图像处理时仍存在着不足。本文创新的提出了一种反向旋转变化的求交算法,取代了光线与平行四边形求交的繁琐运算,通过对模拟物体和超声心脏图像的重建结果可以看出该方法正确且显示的图像具有较高质量。

    

A New Nodical Testing MethodApplys to Volume

    Rendering of Ultrasonic Medical Images

Wang Zhangwei,Zheng Changqiong,WangJingxi,et al

    Biomedical Engineering Center,Sichuan University, Chengdu 610065 china

ABSTRACT It is difficult to extractgeometrical shape in 3-D reconstructing visualization of ultrasonic medical images,and theimage having good quality would not be gotten by using traditional surfacerendering.Volume rendering based on ray tracing is used to visualize the images in thepresent paper.This method avoids extracting isovalue surface.A new way of nodical testinghas also been presented in this paper,it is better than those general methods and itimproves the efficiency of volune rendering.

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