基于手术医生头位姿的三维人体部位显示技术  

Three-Dimensional Body Part Display Technology Based on Surgeon's Head Posture

作　　者：赵全 冯乔生[1] 张亚萍 ZHAO Quan, FENG Qiao-sheng, ZHANG Ya-ping(College of Information, YunNan Normal University, KunMing YunNan 650500, China)

机构地区：[1]云南师范大学,云南昆明650500

出　　处：《软件》2018年第9期58-63,共6页Software

基　　金：国家自然基金项目"基于表面分割的大型三维网格模型多分辨率表示并行构建与绘制"(61262070)资助

摘　　要：虚拟手术技术是训练实习医生或医生进行新手术规划的重要技术,其中人机交互方式是决定虚拟手术是否具有真实感的重要因素。本文主要研究基于医生手术头位姿的人体部位显示技术,对于VTK世界坐标系、VTK相机坐标系以及PATRIOT^(TM)追踪设备世界坐标系进行了描述,并分析了三者坐标系之间的转换过程。然后通过对PATRIOT^(TM)追踪设备坐标数据的编码与解码,结合对人体器官追踪人体视角位置及角度的阈值控制,实现了基于手术医生头位姿的三维人体部位显示技术的研究。同时,为了进一步精确的我们的实验结果,对相机坐标系与PATRIOT^(TM)追踪设备世界坐标系的差值测量进行了标定。最终实验结果表明我们所创建的基于手术医生头位姿的三维部位显示技术可以满足高真实感虚拟手术的仿真需求。Virtual surgery technology is an important technique for training an intern or doctor in planning new surgeries. The humancomputer interaction method is an important factor in determining whether or not virtual sur gery is realistic.This article mainly studies on the human body part display technology based on the doctor＇s head posture, describes the VTK world coordinate system, the VTK camera coordinate system and the world coordinate system of the PATRIOTTM tracking device, and analyzes the conversion process among the three coordinate sys tems.Finally.Then,through the encoding and decoding of the coordinate data of the PATRIOTTM tracking device, combined with the threshold control of the position and angle of the human body tracking the human perspective, the threedimensional human body part display technology based on the surgeon＇s head pose is achieved.At the same time, in order to further refine our experimental results, the difference between the camera coordinate system and the world coordinate system of the PATRIOTTM tracking device was calibrated.The final experimental results show that the 3D part display technology based on the surgeon＇s head pose created by us can meet the simulation needs of highreality virtual surgery.

关 键 词：虚拟手术系统 人机交互技术 人体器官 动态显示 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]