基于VTK的光线投射算法的采样间距  

The sampling interval of ray casting volume rendering algorithm based on VTK

作　　者：陈华[1] 张喜[1] 

机构地区：[1]广西大学计算机与电子信息学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2010年第5期812-816,826,共6页Journal of Guangxi University（Natural Science Edition）

基　　金：广西自然科学基金资助课题(桂科自0728034);广西大学科学基金资助课题(20051201);南宁市科学研究与技术开发计划课题(200801028A)

摘　　要：在VTK算法平台上,分别采用细胞显微图像和头部图像等三维体数据实现了光线投射体绘制算法。实验采用不同的采样间距,得到不同的重构效果,所需的重构时间也不同。通过比较与分析采样间距与重构效果和重构时间的关系,获得合理的采样间距,为不同的序列切片图像三维重建技术研究与应用提供了实验基础。The three-dimensional reconstruction from volume data of the microscopical cell and head is realized with ray casting algorism on Visualization Toolkit（VTK）.Different sampling intervals are used,and different reconstruction results are got and different reconstruction time slots are took in the experiment.The relations between the sampling interval and reconstruction result and reconstruction time slot are compared and analyzed,and the appropriate sampling interval is got.It can provide practical foundation for research and application of three-dimensional reconstruction of kinds of serial slice images.

关 键 词：VTK 光线投射法 三维重建 采样间距 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]