Human Action Recognition Fusing Two-Stream Networks and SVM
TONG Anyang1,2, TANG Chao1,2, WANG Wenjian3
1. School of Artificial Intelligence and Big Data, Hefei University, Hefei 230601 2. Anhui Provincial Key Laboratory of Multimodal Cognitive Com-putation, Anhui University, Hefei 230601 3. School of Computer and Information Technology, Shanxi University, Taiyuan 030006
Abstract：It is difficult for the traditional two-stream convolutional neural network to understand the long-motion information, and when the long-time stream information is lost, the generalization ability of the model decreases. Therefore, a method for human action recognition fusing two-stream network and support vector machine is proposed. Firstly, RGB images of each frame in the video and their corresponding dense optical flow sequence diagrams in the vertical direction are extracted, and the spatial information and time information of actions in the video are obtained. The information is input into the spatial domain and time domain networks for pre-training, and feature extraction is carried out after pre-training. Secondly, the feature vectors with the same dimension extracted from the two-stream network are fused in parallel to improve the representation ability of feature vectors. Finally, the fused feature vectors are input into the linear support vector machine for training and classification. The experimental results based on the standard open database proves that the classification effect of the proposed method is good.
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2021, Vol. 34 
