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Content Provider | IEEE Xplore Digital Library |
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Author | Liangliang Cao YingLi Tian Zicheng Liu Yao, B. Zhengyou Zhang Huang, T.S. |
Copyright Year | 2010 |
Description | Author affiliation: Department of Statistics, University of California, Los Angeles (Yao, B.) || Microsoft Research, Redmond (Zicheng Liu; Zhengyou Zhang) || Department of Electrical Engineering, City College of New York (YingLi Tian) || Beckman Institute, University of Illinois at Urbana-Champaign (Liangliang Cao; Huang, T.S.) |
Abstract | This paper considers the problem of detecting actions from cluttered videos. Compared with the classical action recognition problem, this paper aims to estimate not only the scene category of a given video sequence, but also the spatial-temporal locations of the action instances. In recent years, many feature extraction schemes have been designed to describe various aspects of actions. However, due to the difficulty of action detection, e.g., the cluttered background and potential occlusions, a single type of features cannot solve the action detection problems perfectly in cluttered videos. In this paper, we attack the detection problem by combining multiple Spatial-Temporal Interest Point (STIP) features, which detect salient patches in the video domain, and describe these patches by feature of local regions. The difficulty of combining multiple STIP features for action detection is two folds: First, the number of salient patches detected by different STIP methods varies across different salient patches. How to combine such features is not considered by existing fusion methods [13] [5]. Second, the detection in the videos should be efficient, which excludes many slow machine learning algorithms. To handle these two difficulties, we propose a new approach which combines Gaussian Mixture Model with Branch-and-Bound search to efficiently locate the action of interest. We build a new challenging dataset for our action detection task, and our algorithm obtains impressive results. On classical KTH dataset, our method outperforms the state-of-the-art methods. |
Starting Page | 340 |
Ending Page | 345 |
File Size | 2191570 |
Page Count | 6 |
File Format | |
ISBN | 9781424474912 |
ISSN | 1945788X |
e-ISBN | 9781424474936 |
DOI | 10.1109/ICME.2010.5583562 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2010-07-19 |
Publisher Place | Singapore |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Videos Feature extraction Computer vision Conferences Adaptation model Humans Computational modeling |
Content Type | Text |
Resource Type | Article |
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