A Video Classification Method Based on Spatiotemporal Detail Attention and Feature Fusion

With the explosive growth of Internet video data, demands for accurate large-scale video classification and management are increasing. In the real-world deployment, the balance between effectiveness and timeliness should be fully considered. Generally, the video classification algorithm equipped with time segment network is used in industrial deployment, and the frame extraction feature is used to classify video actions However, the issue of semantic deviation will be raised due to coarse feature description. In this paper, we propose a novel method, called image dense feature and internal significant detail description, to enhance the generalization and discrimination of feature description. Specifically, the location information layer of space-time geometric relationship is added to effectively engrave the local features of convolution layer. Moreover, the multimodal feature graph network is introduced to effectively improve the generalization ability of feature fusion. Extensive experiments show that the proposed method can effectively improve the results on two commonly used benchmarks (kinetics 400 and kinetics 600).