Deep Fusion of Multiple Semantic Cues for Complex Event Recognition

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Xishan ZhangTat-Seng Chua

Abstract

We present a deep learning strategy to fuse multiple semantic cues for complex event recognition. In particular, we tackle the recognition task by answering how to jointly analyze human actions (who is doing what), objects (what), and scenes (where). First, each type of semantic features (e.g., human action trajectories) is fed into a corresponding multi-layer feature abstraction pathway, followed by a fusion layer connecting all the different pathways. Second, the correlations of how the semantic cues interacting with each other are learned in an unsupervised cross-modality autoencoder fashion. Finally, by fine-tuning a large-margin objective deployed on this deep architecture, we are able to answer the question on how the semantic cues of who, what, and where compose a complex event. As compared with the traditional feature fusion methods (e.g., various early or late strategies), our method jointly learns the essential higher level features that are most effective for fusion and recognition. We perform extensive experiments on two real-world complex event video benchmarks, MED'11 and CCV, and demonstrate that our method outperforms the best published results by 21% and 11%, respectively, on an event recognition task.

References

Feb 5, 2008·IEEE Transactions on Neural Networks·Chih-Wei Hsu, Chih-Jen Lin
Feb 1, 2013·Intractable & Rare Diseases Research·Wei Tang

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