Searched for: subject%3A%22II%255C%2B%255C-%255C%2BIntelligent%255C%2BImaging%22
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Dekker, R.J. (author), Bouma, H. (author), den Breejen, E. (author), van den Broek, A.C. (author), Hanckmann, P. (author), Hogervorst, M.A. (author), Mohamoud, A.A. (author), Schoemaker, R.M. (author), Sijs, J. (author), Tan, R.G. (author), Toet, A. (author), Smith, A.J.E. (author)
conference paper 2013
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Andersson, M. (author), Patino, L. (author), Burghouts, G.J. (author), Flizikowski, A. (author), Evans, M. (author), Gustafsson, D. (author), Petersson, H. (author), Schutte, K. (author), Ferryman, J. (author)
In this paper we present a set of activity recognition and localization algorithms that together assemble a large amount of information about activities on a parking lot. The aim is to detect and recognize events that may pose a threat to truck drivers and trucks. The algorithms perform zone-based activity learning, individual action recognition...
conference paper 2013
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Netten, B.D. (author), Kester, L.J.H.M. (author), Wedemeijer, H. (author), Passchier, I. (author), Driessen, B.J.F. (author)
This paper presents the rationale and design of the DynaMap, a Local Dynamic Map (LDM) for infrastructure-based cooperative applications on Road side and Central ITS Stations. Most LDMs are developed primarily for use in cooperative vehicles. The requirements for infrastructure-based applications are different from vehicle-based applications...
conference paper 2013
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Netten, B.D. (author), Hegyi, A. (author), Wang, M. (author), Schakel, W. (author), Yuan, Y. (author), Schreiter, T. (author), van Arem, B. (author), van Leeuwen, C.J. (author), Alkim, T. (author)
Dynamax is a road side based system using the SPECIALIST control algorithm and inductive loops. Dynamax field tests showed that moving jams can be effectively resolved by dynamic speed measures [1,5]. This paper focuses on Dynamax In Car, which extends the road side infrastructure with a V2I cooperative approach. V2I cooperation is used to...
conference paper 2013
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Burghouts, G.J. (author)
The bag-of-features model is a distinctive and robust approach to detect human actions in videos. The discriminative power of this model relies heavily on the quantization of the video features into visual words. The quantization determines how well the visual words describe the human action. Random forests have proven to efficiently transform...
article 2013
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Lefter, I. (author), Rothkrantz, L.J.M. (author), Burghouts, G.J. (author)
Multimodal fusion is a complex topic. For surveillance applications audio-visual fusion is very promising given the complementary nature of the two streams. However, drawing the correct conclusion from multi-sensor data is not straightforward. In previous work we have analysed a database with audio- visual recordings of unwanted behavior in...
article 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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Burghouts, G.J. (author), Schutte, K. (author), Bouma, H. (author), den Hollander, R.J.M. (author)
In this paper, a system is presented that can detect 48 human actions in realistic videos, ranging from simple actions such as ‘walk’ to complex actions such as ‘exchange’. We propose a method that gives a major contribution in performance. The reason for this major improvement is related to a different approach on three themes: sample selection...
article 2013
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Tchebotareva, A. (author), Schols, R.M. (author), Wieringa, F.P. (author), Alić, L. (author), Bouvy, N. (author), Stassen, L.P.S. (author), van de Steeg, E. (author), Klomp, D. (author), Baumer, S. (author), Statham, A. (author), Dunias, P. (author)
One of the challenges during surgery is to make a proper distinction between vital tissues, structures and organs, both at the surface of the exposed area and beneath it. Currently, identification of different tissue types relies either on the skills and anatomical knowledge of the surgeon (e.g., nerves, blood vessels, different tissue types),...
conference paper 2013
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Alić, L. (author), van Vliet, M. (author), Wielopolski, P.A. (author), ten Hagen, T.L.M. (author), van Dijke, C.F. (author), Niessen, W.J. (author), Veenland, J.F. (author)
Experimental evidence supports an association between heterogeneity in tumor perfusion and response to chemotherapy/radiotherapy, disease progression and malignancy. Therefore, changes in tumor perfusion may be used to assess early effects of tumor treatment. However, evaluating changes in tumor perfusion during treatment is complicated by...
article 2013
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Passchier, I. (author), Netten, B.D. (author), Wedemeijer, H. (author), Maas, S.M.P. (author), van Leeuwen, C.J. (author), Schackmann, P.P.M. (author)
Cooperative systems are being developed for large scale deployment in the near future. Validation of the performance of cooperative systems, and evaluation of the impact of cooperative applications is crucial before large scale deployment can proceed. The DITCM test site facilitates testing, evaluation, and validation of cooperative systems in...
conference paper 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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Bouma, H. (author), Vogels, J. (author), Aarts, O.A.J. (author), Kruszynski, K.J. (author), Wijn, R. (author), Burghouts, G.J. (author)
Camera surveillance and recognition of deviant behavior is important for the prevention of criminal incidents. A single observation of subtle deviant behavior of an individual may sometimes be insufficient to merit a follow-up action. Therefore, we propose a method that can combine multiple weak observations to make a strong indication that an...
conference paper 2013
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Bouma, H. (author), Baan, J. (author), Landsmeer, S. (author), Kruszynski, K.J. (author), van Antwerpen, G. (author), Dijk, J. (author)
The capability to track individuals in CCTV cameras is important for e.g. surveillance applications at large areas such as train stations, airports and shopping centers. However, it is laborious to track and trace people over multiple cameras. In this paper, we present a system for real-time tracking and fast interactive retrieval of persons in...
conference paper 2013
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Bouma, H. (author), Burghouts, G.J. (author), de Penning, H.L.H. (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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Schwering, P.B.W. (author), Kemp, R.A.W. (author), Schutte, K. (author)
Recognition and identification ranges are limited to the quality of the images. Both the received contrast and the spatial resolution determine if objects are recognizable. Several aspects affect the image quality. First of all the sensor itself. The image quality depends on the size of the infrared detector array and the sensitivity. Second,...
conference paper 2013
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van Eekeren, A.W.M. (author), Schutte, K. (author), Dijk, J. (author), Schwering, P.B.W. (author)
A well-known phenomena that diminishes the recognition range in infrared imagery is atmospheric turbulence. In literature many methods are described that try to compensate for the distortions caused by atmospheric turbulence. Most of these methods use a global processing approach in which they assume a global shift and a uniform blurring in all...
conference paper 2013
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van Leeuwen, C. (author), Halma, A. (author), Schutte, K. (author)
Detection of anomalies (outliers or abnormal instances) is an important element in a range of applications such as fault, fraud, suspicious behavior detection and knowledge discovery. In this article we propose a new method for anomaly detection and performed tested its ability to detect anomalous behavior in videos from DARPA's Mind's Eye...
conference paper 2013
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Eendebak, P.T. (author), van Eekeren, A.W.M. (author), den Hollander, R.J.M. (author)
We present a robust method for landing zone selection using obstacle detection to be used for UAV emergency landings. The method is simple enough to allow real-time implementation on a UAV system. The method is able to detect objects in the presence of camera movement and motion parallax. Using the detected obstacles we select a safe landing...
conference paper 2013
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Bouma, H. (author), Baan, J. (author), Borsboom, S. (author), van Zon, K. (author), Luo, X. (author), Loke, B. (author), Stoeller, B. (author), van Kuilenburg, H. (author), Dijk, J. (author)
To improve security, the number of surveillance cameras is rapidly increasing. However, the number of human operators remains limited and only a selection of the video streams are observed. Intelligent software services can help to find people quickly, evaluate their behavior and show the most relevant and deviant patterns. We present a software...
conference paper 2013
Searched for: subject%3A%22II%255C%2B%255C-%255C%2BIntelligent%255C%2BImaging%22
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