受限玻尔兹曼机的步态特征提取及其识别

Gait feature extraction based on restricted Boltzmann machine and its recognition method

针对步态识别问题,研究了受限玻尔兹曼机的步态特征提取及其识别.主要基于行人图像序列, 通过背景分割、归一化以及步态周期的计算,采用叠加方法生成步态能量图,以此作为步态的特征图像,利用 受限玻尔兹曼机自动获取步态特征.选取中科院CASIA步态数据库以及支持向量机、孪生支持向量机、神经 网络与K-近邻方法对使用受限玻尔兹曼机方法的特征提取进行了研究,同时与主成分分析PCA、线性判别 分析LDA、卷积神经网络CNN特征提取与识别方法进行了比较.

Aiming at gait recognition,the gait feature extraction and recognition of restricted Boltzmann machine(RBM)are studied.Based on the human pedestrian image sequence,the gait energy map is generated by background segmentation,normalization and gait cycle calculation.The gait energy map is used as the feature image of gait,and the gait feature is automatically acquired by RBM.The gait database of Chinese Academy of Sciences CASIA is chosen to study the gait recognition using RBM method for different classification methods,including support vector machine,twin support vector machine,neural network and K-nearest neighbor method.At the same time,this approach is compared with PCA,LDA and CNN feature extraction and recognition.