A New Real-time Position and Orientation Tracking System for Endoscopy

摘要：

A New real-time position and orientation tracking system for endoscopy is described. Three coils sequentially fed with current comprise the excitation source which will produce magnetic field. According to Biot-Savart-Laplace law, flux intensity data detected by three-axis magnetic sensor could be interpreted into information that will reflect the sensors specific position, thus realizing the position determination. Also, data detected by the magnetic sensor and gravity sensor changes in connection with the spatial angles. By researching the change law between the two, spatial angles of the sensor is calculated, thus realizing orientation determination. It is shown errors in position determination is δ≤3cn, errors in orientation determination is △≤1υ, the tracking frequency of the system is 10 Hz.

关键词： endoscope position tracking orientation magnetic sensor gravity sensor

作者: Likun Liu ZiziOuyang Sen Wang YiWang Xiaodong Chen Daoyin Yu

作者单位: College of Pricision instrument & Opto-Electronic Engineering, Tianjin University, Opto-Electronic I College of Pricision instrument & Opto-Electroni in University, Opto-Electronic Information Science

会议类型: 国际会议

会议名称: 2011 3nd International Conference on Mechanical and Electronics Engineering(2011年第三届机械与电子工程国际会议 ICMEE2011)

会议地点: 合肥

会议语种:英文

页码: 1196-1199

在线出版日期: 2011-09-23（万方平台首次上网日期，不代表论文的发表时间）