基于单目视觉设计的手术导航系统标识物  

Marker of Monocular Vision Based on Surgical Navigation System

作　　者：张巍 徐子昂[2] 林林 刘大鹏[4] 

机构地区：[1]天乐思科技有限公司,深圳市518000 [2]新疆医科大学,新疆乌鲁木齐市830000 [3]广东医科大学,广东省东莞市523808 [4]新疆医科大学第五附属医院,新疆乌鲁木齐市830000

出　　处：《中国数字医学》2016年第10期57-59,共3页China Digital Medicine

基　　金：东莞市高等院校科研机构科技计划项目-数字导航骨科手术机器人的研究与开发(编号:201210825200476);深圳市技术创新计划创业资助项目-单目视觉高精度有标识物光学定位系统(编号:20160419165031616)~~

摘　　要：目的:介绍了一种新型的手术导航系统标识物,使用计算机视觉方法处理标准的数字视频图像,实时跟踪标识物的图案,即"TAG"目标区域,从而获取目标物的三维姿态(位置和方向)。不同于以往的光学定位系统,此类导航系统是完全被动式的,没有主动的红外发射装置以及主动发光的标识物,用以减少手术空间占用,简化手术流程。方法:光学姿态跟踪系统的两个关键功能是识别和姿态测量,本系统发明的一种算法可完成测量区域中的标识物姿态解算,同时针对不同应用的"TAG"体系和标准生成算法,以实现跟踪对象的自动识别,并根据标识物计算被测物体的姿态(位置和方向)。结果及结论:本系统的实时光学姿态跟踪可达到亚毫米级的精度,并减小了设备体积,简化了导航流程,适用于中小型骨科手术。Objective： Introduces a new type of marker for surgical navigation system, the digital video image processing using computer vision methods, real-time tracking markers of pattern known as ＂TAG＂ target, and gets the three-dimensional attitude object （position and orientation）. Different from optical positioning system, this type of navigation system is completely passive, none active infrared devices and active luminous markers are used, it is set to reduce the size of surgical navigation, and simplify the process while using it. Methods： Two key functions of optical orientation tracking system is the recognition and attitude measurement, invented an algorithm of this system would finish measuring the markers of attitude algorithm, for various applications of ＂TAG＂ system and standard algorithms, to enable tracking the automatic object recognition, and markers of computation the pose of the object to be measured （position and orientation）. Result ＆amp; Conclusion： Real time sub-millimeter accuracy can be achieved by this system, and equipment size reduced, navigation flow simplified, suitable for small and medium orthopaedics surgery.

关 键 词：手术导航 标识物 识别算法 姿态测量 

分 类 号：R319[医药卫生—基础医学]