arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.02591cs.CV

Exploiting Inter-Frame Regional Correlation for Efficient Action Recognition

Nanyang Technological University(南洋理工大学);NVIDIA AI Tech Centre(英伟达人工智能技术中心)

Yuecong Xu, Jianfei Yang, Kezhi Mao, Jianxiong Yin, Simon See

英文摘要:

Temporal feature extraction is an important issue in video-based action recognition. Optical flow is a popular method to extract temporal feature, which produces excellent performance thanks to its capacity of capturing pixel-level correlation information between consecutive frames. However, such a pixel-level correlation is extracted at the cost of high computational complexity and large storage resource. In this paper, we propose a novel temporal feature extraction method, named Attentive Correlated Temporal Feature (ACTF), by exploring inter-frame correlation within a certain region. The proposed ACTF exploits both bilinear and linear correlation between successive frames on the regional level. Our method has the advantage of achieving performance comparable to or better than optical flow-based methods while avoiding the introduction of optical flow. Experimental results demonstrate our proposed method achieves the state-of-the-art performances of 96.3% on UCF101 and 76.3% on HMDB51 benchmark datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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