Searched for: +
(1 - 20 of 65)

Pages

document
Schilling, S. (author), Gruhlke, A. (author), Sander, K. (author), Derksen, G.B. (author)
The European Union has committed itself to a 20% reduction of its greenhouse gas (GHG) emissions, and of 30% in case other major economies make comparable efforts. Transport is one of the main emitting sectors, and the only one that continues to grow substantially. Road transport is responsible for the majority of the overall transport emissions...
report 2013
document
Hofmann, K.M. (author)
The recovery of 3D human pose is an important problem in computer vision with many potential applications in human computer interfaces, motion analysis (e.g. sports, medical) and surveillance. 3D human pose also provides informative, viewinvariant features for a subsequent activity recognition step. Most if not all previous work on 3D human pose...
doctoral thesis 2011
document
Dubbelman, G. (author)
Gijs Dubbelman richt zich in zijn onderzoek op intelligente autonome mobiele voertuigen. Deze kunnen potentieel toegepast worden om taken die te gevaarlijk, te tijdrovend of te ingewikkeld zijn voor mensen toch efficiënt, veilig en kosteneffectief te verrichten. Voor hun gebruik is het bepalen van de geometrische structuur van hun omgeving en...
doctoral thesis 2011
document
Alić, L. (author)
doctoral thesis 2013
document
Schwering, P.B.W. (author), van den Broek, S.P. (author), Kemp, R.A.W. (author), Lensen, H.A. (author), TNO Defensie en Veiligheid (author)
Present-day naval operations take place in coastal environments as well as narrow straits all over the world. Coastal environments around the world are exhibiting a number of threats to naval forces. In particular, a large number of asymmetric threats can be present in environments with cluttered backgrounds as well as rapidly varying...
conference paper 2010
document
Hegyi, A. (author), Netten, B.D. (author), Wang, M. (author), Schakel, W. (author), Schreiter, T. (author), Yuan, Y. (author), van Arem, B. (author), Alkim, T. (author)
The SPECIALIST algorithm can resolve jam waves on freeways using roadside technology: detector loops and speed limit gantries. In this paper we extend the algorithm, enabling the integration with cooperative system technologies and other road side detectors, such as in-car detection and actuation, and video-based monitoring (VBM). Integrating...
conference paper 2013
document
ter Haar, F.B. (author), den Hollander, R.J.M. (author), Dijk, J. (author), TNO Defensie en Veiligheid (author)
Moving object detection in urban scenes is important for the guidance of autonomous vehicles, robot navigation, and monitoring. In this paper moving objects are automatically detected using three sequential frames and tracked over a longer period. To this extend we modify the plane+parallax, fundamental matrix, and trifocal tensor algorithms to...
conference paper 2010
document
Rothkrantz, L. (author), Lefter, I. (author)
The paper describes a surveillance system of cameras installed at lamppost of a military area. The surveillance system has been designed to detect unwanted visitors or suspicious behaviors. The area is composed of streets, building blocks and surrounded by gates and water. The video recordings are monitored by operators at regular times. Next...
conference paper 2011
document
Burghouts, G.J. (author), Schutte, K. (author)
Many human actions are correlated, because of compound and/or sequential actions, and similarity. Indeed, human actions are highly correlated in human annotations of 48 actions in the 4,774 videos from visint.org. We exploit such correlations to improve the detection of these 48 human actions, ranging from simple actions such as walk to complex...
conference paper 2012
document
Lefter, I. (author), Burghouts, G.J. (author), Rothkrantz, L.J.M. (author)
The focus of this paper is finding a method to predict aggression using a multimodal system, given multiple unimodal features. The mechanism underlying multimodal sensor fusion is complex and not completely clear. We try to understand the process of fusion and make it more transparent. As a case study we use a database with audio-visual...
conference paper 2012
document
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
document
Burghouts, G.J. (author), Bouma, H. (author), den Hollander, R.J.M. (author), van den Broek, S.P. (author), Schutte, K. (author)
We have developed a system that recognizes 48 human behaviors from video. The essential elements are (i) inference of the actors in the scene, (ii) assessment of event-related properties of actors and between actors, (iii) exploiting the event properties to recognize the behaviors. The performance of our recognizer approaches human performance,...
conference paper 2012
document
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
document
Lefter, I. (author), Rothkrantz, L. (author), Somhorst, M. (author)
At this moment many surveillance systems are installed in public domains to control the safety of people and properties. They are constantly watched by human operators who are easily overloaded. To support the human operators, a surveillance system model is designed that detects suspicious behaviour in a non-public area. Its task is to alert the...
conference paper 2012
document
Alić, L. (author), Veenland, J.F. (author)
PURPOSE: Tumour heterogeneity could be a valuable biomarker for differentiation, grading, response monitoring and outcome prediction. Many quantification techniques have been described, however in clinical practice these methods are scarcely used. The aim of this study is to evaluate the performance of the described methods and to identify the...
conference paper 2013
document
Netten, B.D. (author), Wedemeijer, H. (author), TNO Industrie en Techniek (author)
The complexity of cooperative systems makes the use of high fidelity simulation essential in the development and testing of cooperative applications and their interactions with other cooperative systems. In SAFESPOT a simulator test bench is setup to test the safety margin applications running on multiple vehicles and road side units. This paper...
conference paper 2010
document
Lefter, I. (author), Rothkrantz, L.J.M. (author), Burghouts, G. (author), Yang, Z. (author), Wiggers, P. (author)
Automatic detection of aggressive situations has a high societal and scientific relevance. It has been argued that using data from multimodal sensors as for example video and sound as opposed to unimodal is bound to increase the accuracy of detections. We approach the problem of multimodal aggression detection from the viewpoint of a human...
conference paper 2011
document
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
document
Hu, N. (author), Bouma, H. (author), Worring, M. (author)
Video cameras are widely used for monitoring public areas, such as train stations, airports and shopping centers. When crowds are dense, automatically tracking individuals becomes a challenging task. We propose a new tracker which employs a particle filter tracking framework, where the state transition model is estimated by an optical-flow...
conference paper 2012
document
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
Searched for: +
(1 - 20 of 65)

Pages