Fastrak数据滤波校正及在虚拟手术中的应用  

Filtering and Calibration for Fastrak Data and Its Application in Virtual Surgery

作　　者：钟云飞[1] 熊岳山[1] 谭珂[2] 郭光友[2] 

机构地区：[1]国防科技大学计算机学院 [2]中国人民解放军总医院技术教育中心,北京100853

出　　处：《系统仿真学报》2006年第5期1243-1246,共4页Journal of System Simulation

基　　金：国家自然科学基金(60371036)

摘　　要：电磁跟踪设备Fastrak在虚拟手术中医疗器械的定位中有很重要的应用,为此重点研究了Fastrak与OpenGL的编程接口,以及在复杂电磁场干扰环境下的数据滤波校正。利用快速傅立叶变换,设计了一个带通滤波器对Fastrak噪声数据进行过滤,确保了虚拟手术过程中医疗器械的平稳、准确实施。研究的滤波校正方法已成功应用于虚拟膝关节镜手术系统中,为虚拟手术系统提供了合理的Fastrak数据。Electromagnetic tracking device Fastrak is mostly applied in virtual surgery system to aid the location for medical instrument. How to integrate Fastrak into the OpenGL graphics interface and how to filter and calibrate data in complicated and high noise environment were studied.. In order to keep virtual surgery stable and accuracy, FFT algorithm was used and a band-pass filter was to eliminate the disturbed noise, the reasonable data were achieved and the filtering and calibrating method has been successfully applied in virtual arthroscope surgery system.

关 键 词：电磁跟踪 虚拟手术 OPENGL 滤波校正 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]