Searched for: subject:"Action%5C+recognition"
(1 - 15 of 15)
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Gerats, B. (author), Bouma, H. (author), Uijens, W. (author), Englebiennel, G. (author), Spreeuwers, L. (author)
Data and statistics are key to soccer analytics and have important roles in player evaluation and fan engagement. Automatic recognition of soccer events - such as passes and corners - would ease the data gathering process, potentially opening up the market for soccer analytics at non professional clubs. Existing approaches extract events on...
conference paper 2021
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Gerats, B.G.A. (author)
Data and statistics are key to soccer analytics and have important roles in player evaluation and fan engagement. Automatic recognition of soccer events - such as passes and corners - would ease the data gathering process, potentially opening up the market for non-professional soccer analytics. We propose a novel method for the automatic...
book 2020
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Bouma, H. (author), Schutte, K. (author), ten Hove, R.J.M. (author), Burghouts, G.J. (author), Baan, J. (author)
Surveillance systems are essential for the protection of military compounds and critical infrastructures. Automatic recognition of suspicious activities can augment human operators to find relevant threats. Common solutions for behavior analysis or action recognition require large amounts of training data. However, suspicious activities and...
conference paper 2018
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Bouma, H. (author), Baan, J. (author), ter Haar, F.B. (author), Eendebak, P.T. (author), den Hollander, R.J.M. (author), Burghouts, G.J. (author), Wijn, R. (author), van den Broek, S.P. (author), van Rest, J.H.C. (author)
In the security domain, cameras are important to assess critical situations. Apart from fixed surveillance cameras we observe an increasing number of sensors on mobile platforms, such as drones, vehicles and persons. Mobile cameras allow rapid and local deployment, enabling many novel applications and effects, such as the reduction of violence...
conference paper 2015
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van Huis, J.R. (author), Bouma, H. (author), Baan, J. (author), Burghouts, G.J. (author), Eendebak, P.T. (author), Hollander, R.J.M. (author), Dijk, J. (author), van Rest, J.H.C. (author)
Automatic detection of abnormal behavior in CCTV cameras is important to improve the security in crowded environments, such as shopping malls, airports and railway stations. This behavior can be characterized at different time scales, e.g., by small-scale subtle and obvious actions or by large-scale walking patterns and interactions between...
conference paper 2014
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Bouma, H. (author), Baan, J. (author), Burghouts, G.J. (author), Eendebak, P.T. (author), van Huis, J.R. (author), Dijk, J. (author), van Rest, J.H.C. (author)
Proactive detection of incidents is required to decrease the cost of security incidents. This paper focusses on the automatic early detection of suspicious behavior of pickpockets with track-based features in a crowded shopping mall. Our method consists of several steps: pedestrian tracking, feature computation and pickpocket recognition. This...
conference paper 2014
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Burghouts, G.J. (author), Eendebak, P.T. (author), Bouma, H. (author), Hove, R.J.M. (author)
In this paper, we summarize how the action recognition can be improved when multiple views are available. The novelty is that we explore various combination schemes within the robust and simple bag-of-words (BoW) framework, from early fusion of features to late fusion of multiple classifiers. In new experiments on the publicly available IXMAS...
conference paper 2014
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Bouma, H. (author), van Rest, J.H.C. (author), Burghouts, G.J. (author), Schutte, K. (author), Baan, J. (author)
To improve security in crowded environments, such as airports, shopping malls and railway stations, the number of surveillance cameras (CCTV) is rapidly increasing. However, the number of human operators remains limited and only a selection of the video streams can be observed. This makes it hard for an operator to be proactive. This paper gives...
article 2014
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Burghouts, G.J. (author), Eendebak, P.T. (author), Bouma, H. (author), ten Hove, R.J.M. (author)
This paper describes the TNO action recognition system that was used to generate the results for our submission to the competition track of the THUMOS ’13 challenge at ICCV ’13. This system deploys only the STIP features that were provided on the website of the challenge. A bag-of-features model is extended with three novelties
conference paper 2013
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Burghouts, G.J. (author), de Penning, H.L.H. (author), ten Hove, R.J.M. (author), Landsmeer, S. (author), van den Broek, S.P. (author), Hollander, R.J.M. (author), Hanckmann, P. (author), Kruithof, M.C. (author), van Leeuwen, C.J. (author), Korzec, S. (author), Bouma, H. (author), Schutte, K. (author)
The contribution of this paper is a search engine that recognizes and describes 48 human actions in realistic videos. The core algorithms have been published recently, from the early visual processing (Bouma, 2012), discriminative recognition (Burghouts, 2012) and textual description (Hankmann, 2012) of 48 human actions. We summarize the key...
conference paper 2013
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Burghouts, G.J. (author), Schutte, K. (author)
We investigate how human action recognition can be improved by considering spatio-temporal layout of actions. From literature, we adopt a pipeline consisting of STIP features, a random forest to quantize the features into histograms, and an SVM classifier. Our goal is to detect 48 human actions, ranging from simple actions such as walk to...
article 2013
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Burghouts, G.J. (author), Eendebak, P.T. (author), Bouma, H. (author), ten Hove, R.J.M. (author)
Action recognition is a hard problem due to the many degrees of freedom of the human body and the movement of its limbs. This is especially hard when only one camera viewpoint is available and when actions involve subtle movements. For instance, when looked from the side, checking one’s watch may look very similar to crossing one’s arms. In this...
conference paper 2013
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Burghouts, G.J. (author), van den Broek, S.P. (author), ten Hove, R.J.M. (author)
Human actions are spatio-temporal patterns. A popular representation is to describe the action by features at interest points. Because the interest point detection and feature description are generic processes, they are not tuned to discriminate one particular action from the other. In this paper we propose a saliency measure for each individual...
conference paper 2013
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Bouma, H. (author), Burghouts, G.J. (author), de Penning, L. (author), Hanckmann, P. (author), ten Hove, R.J.M. (author), Korzec, S. (author), Kruithof, M.C. (author), Landsmeer, S. (author), van Leeuwen, C.J. (author), van den Broek, S.P. (author), Halma, A.H.R. (author), den Hollander, R.J.M. (author), Schutte, K. (author)
Ground surveillance is normally performed by human assets, since it requires visual intelligence. However, especially for military operations, this can be dangerous and is very resource intensive. Therefore, unmanned autonomous visual-intelligence systems are desired. In this paper, we present an improved system that can recognize actions of a...
conference paper 2013
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Bouma, H. (author), Hanckmann, P. (author), Marck, J.W. (author), de Penning, H.L.H. (author), den Hollander, R.J.M. (author), ten Hove, R.J.M. (author), van den Broek, S.P. (author), Schutte, K. (author), Burghouts, G.J. (author)
Surveillance is normally performed by humans, since it requires visual intelligence. However, it can be dangerous, especially for military operations. Therefore, unmanned visual-intelligence systems are desired. In this paper, we present a novel system that can recognize human actions. Central to the system is a break-down of high-level...
conference paper 2012
Searched for: subject:"Action%5C+recognition"
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