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Application of Improved EM Algorithm in Recognition of Human Actions
Author(s): 
Pages: 196-199
Year: Issue:  13
Journal: Video Engineering

Keyword:  GMMEMrecognition of human action;
Abstract: EM算法是求解GMM参数的传统算法,当样本数据规模比较大、GMM高斯成分数量比较高时,EM算法需要很长的时间才能收敛.提出了一种改进的EM算法,通过设置适当的参数,利用改进后的EM算法求解GMM参数,相比原EM算法在运行速度上有了很大的提高;进一步,结合GMM超向量以及SVM分类器,将改进后的EM算法应用到对KTH人体行为数据库的识别中,相比原EM算法识别准确率只受到了很小的影响.
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