| 分段滤波用于消除脉搏血氧检测中多种运动干扰的研究 |
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| 引用本文： | 李庆波,聂鑫,张广军,吴瑾光.分段滤波用于消除脉搏血氧检测中多种运动干扰的研究[J].光谱学与光谱分析,2009,29(11):2994-2997. |
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| 作者姓名： | 李庆波 聂鑫 张广军 吴瑾光 |
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| 作者单位： | 1. 北京航空航天大学仪器科学与光电工程学院,精密光机电一体化技术教育部重点实验室,北京,100191
2. 北京大学化学与分子工程学院,稀土材料化学及应用国家重点实验室,北京,100871 |
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| 基金项目： | 国家自然科学基金项目，北京市优秀人才培养项目 |
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| 摘 要： | 脉搏血氧饱和度检测仪可以无损、实时地检测动脉血液中的含氧百分比,从而快速对人体的呼吸状况以及心肺功能作出判断,但其检测精度极易受到测试部位运动的影响.人体测试部位的运动大致可以分为突发性运动干扰以及周期性的运动干扰.突发性干扰表现在局部脉搏波的波形突变上,而周期性的干扰体现在多个局部脉搏波的波形的周期性变化上.文章有针对性地提出了一种将微分阈值分段与迭带中值滤波相结合的方法来剔除突发扰动的方法,并且在上诉方法上再加上一级多点移动平滑以消除周期性运动干扰.实验证明该方法在消除多种运动伪差上有着较好的效果,且该方法计算简单,易于实现,有着一定的实际应用价值.
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| 关 键 词： | 血氧饱和度 运动干扰 微分阈值 中值滤波 移动均值滤波 |
| 收稿时间： | 2008/12/2 |
Study On Resistance to Motion Artifact in Pulse Oximetry Measurement Using Segment Filter Method |
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| LI Qing-bo,NIE Xin,ZHANG Guang-jun,WU Jin-guang. Key Laboratory of Precision Opto-Mechatronics Technology,Ministry of Education,College of Instrument Science , Opto-Electronics Engineering,Beihang University,Beijing ,China.Study On Resistance to Motion Artifact in Pulse Oximetry Measurement Using Segment Filter Method[J].Spectroscopy and Spectral Analysis,2009,29(11):2994-2997. |
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| Authors: | LI Qing-bo NIE Xin ZHANG Guang-jun WU Jin-guang Key Laboratory of Precision Opto-Mechatronics Technology Ministry of Education College of Instrument Science Opto-Electronics Engineering Beihang University Beijing China |
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| Institution: | LI Qing-bo1,NIE Xin1,ZHANG Guang-jun1,WU Jin-guang21. Key Laboratory of Precision Opto-Mechatronics Technology,Ministry of Education,College of Instrument Science and Opto-Electronics Engineering,Beihang University,Beijing 100191,China2. The State Key Laboratory of Rare Earth Materials and Applications,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China |
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| Abstract: | The authors proposed a method which combined the differential threshold segment with median filter to eliminate abrupt artifact motion interference in the use of pulse oximeter,and further more,by adding the window moving average filter,this method could reduce the periodic artifact motion interrupt in some way. In the experiment,the authors intently simulated the common finger motion to get the artifact motion corrupted signal with our self-made reflectance oximeter system. The comparison of the original P... |
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| Keywords: | Oxygen saturation Motion artifact Differential threshold Median filter Windows moving average |
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