双目视觉系统精度分析及在经络可视化中的应用.docx

研究论RESEARCH 研究论 RESEARCH WO Accuracy Analysis of Binocular Vision System and Its Application in Meridian Visualization 林雪华，陈新 林雪华，陈新 福州大学 物理与信息工程学院，福建 福州 350108 [摘 要] 为提高双目立体视觉测量系统的测量精度，采用三角法建立双目立体视觉测量系统的结构 参数模型，分析系统结构参数对测量结果的影响。通过仿真得出各结构参数对测量结果的精度影响 趋势，归纳出小误差的结构参数取值范围，并将分析结果应用于经络可视化研究中。通过在电极探 针上粘贴定位标靶，利用标靶与电极探针的关系计算出探针的坐标，从而间接得出经络点的位置。 通过对标靶中X角点的定位精度进行分析，得出实验操作的有效工作区域，为经络的准确定位奠定 了良好的基础。最后，根据理论与实验结果总结出提高系统精度的方法。 [关键词] 超声仪；经络可视化；角点检测；双目立体视觉；结构参数；误差分析 Abstract: In order to improve the measurement precision of binocular stereo vision measuring system, a new structural parameter model of this system was investigated with the trigonometric method to analyze the structural parameters affect on the vision measurement accuracy. Then, by simulation, the precision in fluence trend of these structural parameters was got to conclude the range of the structural parameters with a small error. And, the simulation result could be applied to the meridian visualization. By pasting the location target on the electrode probe, the coordinates of the probes was calculated by using the relationship of target and electrode probes to indirectly get meridian point position. Also, by analyzing the accuracy of the X corners on the target, this experiment obtained an effective work area which laid a good foundation for the meridian visualization. Finally, according to the theoretical and experimental results, the method of improving system precision was summarized. Key words: ultrasonic apparatus; meridian visualization; corner detection; binocular stereo vision; structural parameter; error analysis LIN Xue-hua, Chen Xin College of Physics and Information Engineering, Fuzhou University, Fuzhou Fujian 350108, China [中图分类号] TP391.41 [文献标志码] A doi：10.3969/j.issn.1674-1633.2014.03.005 [文章编号] 1674-1633(2014)03-0016-05 0 前言 2014年第29卷 03期 VOL.29 No.03中医认为，经络调控人体气血的运行，是人体脏腑联 络体表及全身各部的通道 [1]。对经络、穴位的准确定位， 特别是在人体体表上实时显示，对于临床诊断、治疗和疗 效的评估具有重要的意义和临床应用价值。目前常用的经 络定位方法有超声定位、红外定位 2014年第29卷 03期 VOL.29 No.