A Meridian Visualization System Based on Impedance and Binocular Vision.
- Author:
Qiyan SU
;
Xin CHEN
- Publication Type:Journal Article
- MeSH:
Calibration;
Electric Impedance;
Electrodes;
Humans;
Meridians;
Vision, Binocular
- From:
Chinese Journal of Medical Instrumentation
2015;39(3):166-169
- CountryChina
- Language:Chinese
-
Abstract:
To ensure the meridian can be measured and displayed correctly on the human body surface, a visualization method based on impedance and binocular vision is proposed. First of all, using alternating constant current source to inject current signal into the human skin surface, then according to the low impedance characteristics of meridian, the multi-channel detecting instrument detects voltage of each pair of electrodes, thereby obtaining the channel of the meridian location, through the serial port communication, data is transmitted to the host computer. Secondly, intrinsic and extrinsic parameters of cameras are obtained by Zhang's camera calibration method, and 3D information of meridian location is got by corner selection and matching of the optical target, and then transform coordinate of 3D information according to the binocular vision principle. Finally, using curve fitting and image fusion technology realizes the meridian visualization. The test results show that the system can realize real-time detection and accurate display of meridian.
