| 基于PLS特征筛选和改进结构PNN的步态识别 |
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| 引用本文： | 袁娜,刘沛.基于PLS特征筛选和改进结构PNN的步态识别[J].唐山学院学报,2016,29(3):47-52. |
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| 作者姓名： | 袁娜 刘沛 |
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| 作者单位： | 唐山学院 智能与信息工程学院, 河北 唐山 063020,河北能源职业技术学院 机电工程系, 河北 唐山 063000 |
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| 摘 要： | 采集单侧大腿截肢患者髋关节有代表性的加速度信号(双轴)和角速度信号,并同时采集足底压力信号,进行多运动模式识别,经信号预处理提取出特征参数,利用偏最小二乘法(PLS)进行特征筛选,最后利用改进的概率神经网络(PNN)步态模式识别和分类,实现对下肢假肢在行走、上下坡、上下台阶的不同运动模式的有效识别。
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| 关 键 词： | 步态识别 偏最小二乘法 概率神经网络 先验变量 |
Gait Recognition Based on Partial Least Squares Method and Modified Probabilistic Neural Network |
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| YUAN Na and LIU Pei.Gait Recognition Based on Partial Least Squares Method and Modified Probabilistic Neural Network[J].Journal of Tangshan College,2016,29(3):47-52. |
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| Authors: | YUAN Na and LIU Pei |
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| Institution: | College of Intelligence and Information Engineering, Tangshan University, Tangshan 063020, China and Department of Electrical and Mechanical Engineering, Hebei Vocational College of Energy and Technology, Tangshan 063000, China |
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| Abstract: | The authors of this paper propose a method of identifying the different motion patterns of artificial legs walking on the level ground, down or up stairs and slopes by first collecting the typical acceleration signal(dual-axis) and the angular velocity signal of the hip joint of the patients with one leg amputated, and the plantar pressure signal to recognize the motion patterns, then pre-processing the signals to extract the feature parameters and selecting them with partial least squares (PLS) method, and finally finding and classifying the gait pattern through improved probabilistic neural network (PNN). |
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| Keywords: | gait recognition partial least squares method probabilistic neural network priori variable |
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