一种新型求交方法在超声医学图像体绘制算法中的应用  

A New Nodical Testing Method Applys to Volume Rendering of Ultrasonic Medical Images

作　　者：王章伟[1] 郑昌琼[1] 王景熙[1] 汪天富 李德玉 林江莉 

机构地区：[1]四川大学计算机科学系

出　　处：《中国超声医学杂志》2000年第6期413-416,共4页Chinese Journal of Ultrasound in Medicine

基　　金：国家自然科学基金资助课题!(69631020)

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 。It is difficult to extract geometrical shape in 3D reconstructing visualization of ultrasonic medical images,and the image having good quality would not be gotten by using traditional surface renderingVolume rendering based on ray tracing is used to visualize the images in the present paperThis method avoids extracting isovalue surfaceA new way of nodical testing has also been presented in this paper,it is better than those general methods and it improves the efficiency of volune rendering.

关 键 词：超声医学图像 求交测试 光线追踪 体绘制 

分 类 号：R445.1[医药卫生—影像医学与核医学]