中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (17): 3143-3147.doi: 10.3969/j.issn.1673-8225.2012.17.024

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

采用图像匹配和三维跟踪器的人体经络可视化方法**

陈  新   

  1. 福州大学物理与信息工程学院，福建省福州市 350108
  • 收稿日期:2011-12-28 修回日期:2012-01-12 出版日期:2012-04-22 发布日期:2012-04-22
  • 通讯作者: 陈新，教授，福州大学物理与信息工程学院，福建省福州市 350108 chen-xin@fzu.edu.cn
  • 作者简介:通讯作者：陈新，教授，福州大学物理与信息工程学院，福建省福州市 350108 chen-xin@fzu.edu.cn
  • 基金资助:

    卫生部科学研究基金资助项目(WKJ 2005-2-004)；福建省自然科学基金资助项目(2009J01287)，项目名称：中医经络与穴位的三维定位检测与显示新技术研究。

A method for the human meridian visualization using image matching and three-dimensional tracker

Chen Xin   

  1. College of Physics and Information Engineering, Fuzhou University, Fuzhou  350108, Fujian Province, China
  • Received:2011-12-28 Revised:2012-01-12 Online:2012-04-22 Published:2012-04-22
  • Contact: Chen Xin, Professor, College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, Fujian Province, China chen-xin@fzu.edu.cn
  • About author:Chen Xin, Professor, College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, Fujian Province, China chen-xin@fzu.edu.cnfzcx5644@yahoo.com.cn
  • Supported by:

    Scientific Research Foundation of the Ministry of Health, No. WKJ 2005-2-004*; Natural Science Foundation of Fujian Province, No. 2009J01287*

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摘要：

背景：经络信息可视化技术采用图形图像与视觉的表现形式，将现实中不可见的人体经络显示于计算机屏幕上，使抽象的经络信息展现在人们面前，用以辅助经络定位和临床诊治。
目的：为更方便有效地提供人体经络可视化方法，基于磁场跟踪器和摄像机标定技术，开发一种基于电阻抗的人体经络检测和可视化系统。
方法：将多通道经络检测中各个通道的电阻抗与由磁场跟踪器所确定的相应通道电极探针触点的三维坐标进行配对，利用经络低电阻抗特性和代价函数从候选通道中选择准确的经络点并确定三维经络线；然后用“张正友”法和图形变换法进行优化，将经络线的三维坐标映射到人体皮肤表面的二维图像上；随着电极探头移动，整条经络线就可显示在皮肤表面的二维图像上。
结果与结论：研究和实验结果表明，系统的阻抗检测误差小于0.2%，并可实时地在现场人体体表图像上准确有效地显示人体经络。该方法实现了人体经络的可视化，可用于医生临床诊断治疗或中医教学。
 

关键词: 经络, 阻抗检测, 摄像机标定, 图像融合, 二维图像

Abstract:

BACKGROUND: The human meridian is usually invisible, but it can be displayed on the computer screen using the meridian information visualization technique based on the method of the graphics, images and computer vision. So the abstract meridian information can be displayed, and can be used to help us to locate the meridian and to do clinical treatment.
OBJECTIVE: To provide a more effective and convenient method for visualizing the meridian line, and to develop a meridian detection and display system based on the magnetic tracker and the camera calibration technology.
METHODS: Electrical impedance on skin with multi-channel impedance detector was measured, the three-dimensional coordinate of all electrode probes on skin was acquired by using the magnetic tracker, and the electrical impedance of each channel was matched with the three-dimensional coordinate of all probes respectively. Then, according to the lower impedance characteristic of meridian, the accurate meridian place could be selected from the candidate channels using cost function. The three-dimensional coordinate of meridian could be projected onto the two-dimensional image that was taken from skin by using the “Zhang Zhengyou” method, optimized projection transformation and the image fusion. With the moving of the electrode probe, the meridian line could be displ ayed on the two-dimensional image of skin.
RESULTS AND CONCLUSION: The results of experiment showed that the system impedance detection error was less than 0.2%, and the meridian line could be displayed accurately and effectively on the image of the body surface in real time. The method achieves the human meridian visualization, and can be used for medical diagnosis, the treatment or Chinese medical teaching.

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