Searched for: subject%3A%22II%255C%2B%255C-%255C%2BIntelligent%255C%2BImaging%22
(1 - 20 of 194)
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Lu, Y.J. (author), Zhang, H. (author), Ngo, C.W. (author), de Boer, M. (author), Schavemaker, J. (author), Schutte, K. (author), Kraaij, W. (author)0-Shot System - The simple exact matching performs the best - The quality of concepts selected to represent an event is more important than quantity - It's an open problem of how to harness the ontology-based mapping MER System - In key evidence localization, we emphasize the event relevancy first, then the hot concepts - We recommend three...conference paper 2020
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Nieuwenhuizen, R.P.J. (author), Kruithof, M. (author), Schutte, K. (author)High resolution imagery is of crucial importance for the performance on visual recognition tasks. Super-resolution (SR) reconstruction algorithms aim to enhance the image resolution beyond the capability of the image sensor being used. Traditional SR algorithms approach this inverse problem using physical models for the image formation combined...conference paper 2017
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Louizos, C. (author), Shalit, U. (author), Mooij, J. (author), Sontag, D. (author), Zemel, R. (author), Welling, M. (author)Learning individual-level causal effects from observational data, such as inferring the most effective medication for a specific patient, is a problem of growing importance for policy makers. The most important aspect of inferring causal effects from observational data is the handling of confounders, factors that affect both an intervention and...conference paper 2017
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Dijk, J. (author), Bijl, P. (author), Oppeneer, M. (author), ten Hove, R.J.M. (author), van Iersel, M. (author)The Electro-Optical Signal Transmission and Ranging (EOSTAR) model is an image-based Tactical Decision Aid (TDA) for thermal imaging systems (MWIR/LWIR) developed for a sea environment with an extensive atmosphere model. The Triangle Orientation Discrimination (TOD) Target Acquisition model calculates the sensor and signal processing effects on...conference paper 2017
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- de Boer, M.H. (author), Oggero, S. (author), van Bekkum, M.A. (author), Bomhof, F.W. (author), Hillerström, F.H.J. (author), Knegjens, R.J. (author), Kruithof, M.C. (author), Neumann, N.M.P. (author), Dijk, J. (author) conference paper 2017
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de Boer, M.H.T. (author), Lu, Y.J. (author), Zhang, H. (author), Schutte, K. (author), Ngo, C.W. (author), Kraaij, W. (author)Searching in digital video data for high-level events, such as a parade or a car accident, is challenging when the query is textual and lacks visual example images or videos. Current research in deep neural networks is highly beneficial for the retrieval of high-level events using visual examples, but without examples it is still hard to (1)...article 2017
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de Boer, M.H.T. (author), Bouma, H. (author), Kruithof, M.C. (author), ter Haar, F.B. (author), Fischer, N.M. (author), Hagendoorn, L.K. (author), Joosten, B. (author), Raaijmakers, S. (author)The information available on-line and off-line, from open as well as from private sources, is growing at an exponential rate and places an increasing demand on the limited resources of Law Enforcement Agencies (LEAs). The absence of appropriate tools and techniques to collect, process, and analyze the volumes of complex and heterogeneous data...conference paper 2017
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de Boer, M. (author), Pingen, G. (author), Knook, D. (author), Schutte, K. (author), Kraaij, W. (author)In content based video retrieval videos are often indexed with semantic labels (concepts) using pre-trained classifiers. These pre-trained classifiers (concept detectors), are not perfect, and thus the labels are noisy. Additionally, the amount of pre-trained classifiers is limited. Often automatic methods cannot represent the query adequately...article 2017
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Louizos, C. (author), Ullrich, K. (author), Welling, M. (author)Compression and computational efficiency in deep learning have become a problem of great significance. In this work, we argue that the most principled and effective way to attack this problem is by adopting a Bayesian point of view, where through sparsity inducing priors we prune large parts of the network. We introduce two novelties in this...conference paper 2017
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Fischer, N.M. (author), Kruithof, M.C. (author), Bouma, H. (author)In the field of security and defense, it is extremely important to reliably detect moving objects, such as cars, ships, drones and missiles. Detection and analysis of moving objects in cameras near borders could be helpful to reduce illicit trading, drug trafficking, irregular border crossing, trafficking in human beings and smuggling. Many...conference paper 2017
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Louizos, C. (author), Welling, M. (author)We reinterpret multiplicative noise in neural networks as auxiliary random variables that augment the approximate posterior in a variational setting for Bayesian neural networks. We show that through this interpretation it is both efficient and straightforward to improve the approximation by employing normalizing flows (Rezende & Mohamed, 2015)...conference paper 2017
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den Hollander, R.J.M. (author), Bouma, H. (author), van Rest, J.H.C. (author), ten Hove, J.M. (author), ter Haar, F.B. (author), Burghouts, G.J. (author)Video analytics is essential for managing large quantities of raw data that are produced by video surveillance systems (VSS) for the prevention, repression and investigation of crime and terrorism. Analytics is highly sensitive to changes in the scene, and for changes in the optical chain so a VSS with analytics needs careful configuration and...conference paper 2017
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Satsangi, Y. (author), Whiteson, S. (author), Oliehoek, F.A. (author), Bouma, H. (author)Automated tracking is key to many computer vision applications. However, many tracking systems struggle to perform in real-time due to the high computational cost of detecting people, especially in ultra high resolution images. We propose a new algorithm called PartiMax that greatly reduces this cost by applying the person detector only to the...conference paper 2017
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- Satsangi, Y. (author), Whiteson, S. (author), Oliehoek, F.A. (author), Bouma, H. (author) article 2017
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de Boer, M.H.T. (author), Escher, C. (author), Schutte, K. (author)One of the challenges in Video Event Retrieval, the field in which (a sequence of frames with) high-level events are retrieved from a set of videos, is to model the temporal structure. One way to incorporate this information is using ANDOR graphs, which is a type of graphical model consisting of layers with AND nodes and OR nodes. We introduce...conference paper 2017
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Schutte, K. (author), Burghouts, G. (author), van der Stap, N. (author), Westerwoudt, V.L. (author), Bouma, H. (author), Kruithof, M.C. (author), Baan, J. (author), ten Hove, R.J.M. (author)The bottleneck in situation awareness is no longer in the sensing domain but rather in the data interpretation domain, since the number of sensors is rapidly increasing and it is not affordable to increase human data-analysis capacity at the same rate. Automatic image analysis can assist a human analyst by alerting when an event of interest...conference paper 2016
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van den Broek, S.P. (author), Nieuwenhuizen, R.P.J. (author), Fischer, N.M. (author), ter Haar, F.B. (author), Baan, J. (author), Van Der Stap, N. (author), Dijk, J. (author), Schutte, K. (author)Naval ships have camera systems available to assist in performing their operational tasks. Some include automatic detection and tracking, assisting an operator by keeping a ship in view or by keeping collected information about ships. Tracking errors limit the use of camera information. When keeping a ship in view, an operator has to re-Target a...conference paper 2016
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- Amaral Santos, P.L. (author), Imangaliyev, S. (author), Schutte, K. (author), Levin, E. (author) conference paper 2016
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de Boer, M.H.T. (author), Schutte, K. (author), Zhang, H. (author), Lu, Y.J. (author), Ngo, C.W. (author), Kraaij, W. (author)One of the challenges in Multimedia Event Retrieval is the integration of data from multiple modalities. A modality is defined as a single channel of sensory input,such as visual or audio. We also refer to this as data source. Previous research has shown that the integration of different data sources can improve performance compared to only...article 2016
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Elands, P.J.M. (author)Kleine onbemande vliegtuigen, ook wel drones genoemd, zijn bezig aan een snelle opmars. Firma’s als DJI, Parrot en 3D Robotics brengen regelmatig nieuwe modellen op de markt die steeds meer functionaliteit hebben, zoals een HD camera en het automatisch volgen van de dronebestuurder (de 'selfie-drone'), en ook steeds makkelijker te bedienen zijn....article 2016
Searched for: subject%3A%22II%255C%2B%255C-%255C%2BIntelligent%255C%2BImaging%22
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