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See detailRobust analysis of silhouettes by morphological size distributions
Barnich, Olivier ULg; JODOGNE, Sébastien ULg; Van Droogenbroeck, Marc ULg

in Lecture Notes in Computer Science (2006), 4179

We address the topic of real-time analysis and recognition of silhouettes. The method that we propose first produces object features obtained by a new type of morphological operators, which can be seen as ... [more ▼]

We address the topic of real-time analysis and recognition of silhouettes. The method that we propose first produces object features obtained by a new type of morphological operators, which can be seen as an extension of existing granulometric filters, and then insert them into a tailored classification scheme. Intuitively, given a binary segmented image, our operator produces the set of all the largest rectangles that can be wedged inside any connected component of the image. The latter are obtained by a standard background subtraction technique and morphological filtering. To classify connected components into one of the known object categories, the rectangles of a connected component are submitted to a machine learning algorithm called EXtremely RAndomized trees (Extra-trees). The machine learning algorithm is fed with a static database of silhouettes that contains both positive and negative instances. The whole process, including image processing and rectangle classification, is carried out in real-time. Finally we evaluate our approach on one of today's hot topics: the detection of human silhouettes. We discuss experimental results and show that our method is stable and computationally effective. Therefore, we assess that algorithms like ours introduce new ways for the detection of humans in video sequences. [less ▲]

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See detailLes processus de paternalité et le passage à la paternité
Naziri, Despina ULg; De Coster, L.

in Gillot-de-Vries, F. (Ed.) Les parentalités d'aujourd'hui (2006)

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See detailApproches par l'erreur totale en transfert analytique
Dewé, Walthère ULg; Boulanger, Bruno ULg; Govaerts, B. et al

Conference (2006)

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See detailEvaluation of original dual thromboxane A2 modulators as anti-angiogenic agents
Dassesse, Thibaut; de Leval, Xavier; Dogné, Jean-Michel et al

Scientific conference (2006)

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See detailL'environnement, un certain droit de l'homme
Pâques, Michel ULg

in Administration Publique [=AP] : Revue du Droit Public et des Sciences Administratives (2006)

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See detailA-t-on evalue l'interet du SAMU?
Bodson, Lucien ULg; Grenade, J.; Micheels, Jean ULg et al

in Revue Médicale de Liège (2006), 61(5-6, May-Jun), 494-9

Recent international guidelines about emergency situations (ILCOR / ERC) pointed to the need of the whole "chain of survival". ALS, Advanced Life Support (the last and "medical" part of the chain ) is ... [more ▼]

Recent international guidelines about emergency situations (ILCOR / ERC) pointed to the need of the whole "chain of survival". ALS, Advanced Life Support (the last and "medical" part of the chain ) is important and influences survival rate. If no doubt exists about "what" and "when" to do in such situations, there is no consensus in industrialized countries about "who" should be in charge of such out-of-hospital acute diagnosis and treatment: emergency physicians, emergency nurses, emergency medical technicians (EMT), other "new" professionals ? ... A description of the MICU system in Belgium is given. [less ▲]

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See detailUn siècle d’égyptologie à l’Université de Liège
Winand, Jean ULg

in Warmembol, E. (Ed.) La Caravane du Caire (2006)

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See detailInternet-Exploration: Zu den Chancen, die eine Online-Erhebung regional gefärbter Alltagssprache bietet
Elspaß, Stephan; Möller, Robert ULg

in Osnabrücker Beiträge zur Sprachtheorie (2006), 71

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See detailAchromatic optical vortex coronagraph with subwavelength gratings
Mawet, Dimitri ULg; Riaud, Pierre ULg; Baudrand, J. et al

in Proceedings of the Coronagraph Workshop (2006)

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See detailSelf-face does not capture attention: an inattentional blindness study
Devue, Christel ULg; Laloyaux, Cédric ULg; Feyers, Dorothée ULg et al

Poster (2006)

It has been shown previously that some categories of stimuli are more likely to capture attention under condition of inattention compared to others. This is the case of faces and auto-referential material ... [more ▼]

It has been shown previously that some categories of stimuli are more likely to capture attention under condition of inattention compared to others. This is the case of faces and auto-referential material (e.g., the subject’s own name) in the inattentional blindness paradigm (Mack & Rock, 1998). However, stimuli combining these two properties have never been assessed. Yet it could be that the own face, because it is both a face and a self-referential stimulus, is more prone to attract attention compared to other faces. On the contrary, it could be that the identity and the familiarity of faces are not relevant factors because any face attracts attention by itself and all faces are equally distractive. Moreover, most of previous studies have used schematic unrealistic stimuli. Here, we tested these two opposite hypotheses in a first experiment using photographic stimuli and results showed that the own face does not attract attention compared to another highly familiar face or to an unknown face. Nevertheless, it appears that the own face was still better recognized compared to the others. A second experiment was aimed at verifying whether faces attract attention more than other objects with the same realistic photographic stimuli than used in experiment 1. Results confirmed previous findings that faces are more resistant to inattentional blindness than other objects. Our study suggests that a face by itself attracts attention compared to other objects whatever its familiarity or its identity. These results challenge the view that auto-referential material benefits from specific attentional processes. [less ▲]

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See detailLe mur d’enceinte de Thoutmosis III décoré par Ramsès II au grand temple d’Amon-Rê à Karnak
Winand, Jean ULg

in Isiaca. Bull. de l’Ass. d’Egyptologie (2006), (1), 71-83

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See detailRecomposer sa vie ailleurs ; Recherche-action auprès des familles primo-arrivantes
Born, Michel ULg; Deccache, A.; Desmet, H. et al

Book published by L'Harmattan (2006)

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See detailComputing the Field of nth Order Accelerations in Rigid Motion by Direct Measurements
Condurache, D.; Martinusi, Vladimir ULg

in Bulletin of the Polytechnic Institute of Jasi. Section Mathematics, Theoretical Mechanics, Physics = Buletinul Institutului Politehnic din Iaşi. Secţia Matematica, Mecanica Teoretica, Fizica (2006), LII (LVI)(6),

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See detailAccuracy and precision : total error vs 4-6-30
Boulanger, Bruno ULg; Dewé, Walthère ULg; Hubert, Philippe ULg et al

Conference (2006)

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See detailAnalytical validation of the new plasma calibrated Accu-Chek (R) Test Strips (Roche Diagnostics)
Meex, Cécile ULg; Poncin, José ULg; Chapelle, Jean-Paul ULg et al

in Clinical Chemistry & Laboratory Medicine (2006), 44(11), 1376-1378

Background: The Accu-Chek Inform glucose monitor is a point-of-care system for testing blood glucose. New test strips, calibrated to deliver glucose plasma-like values, were launched on the market in May ... [more ▼]

Background: The Accu-Chek Inform glucose monitor is a point-of-care system for testing blood glucose. New test strips, calibrated to deliver glucose plasma-like values, were launched on the market in May 2005. The aim of our study was to perform analytical validation of these new strips. Methods: We compared the new plasma strips with whole blood strips; results for the plasma strips with plasma values obtained using a clinical analyzer and with whole blood values given by the glucose electrode of a blood gas analyzer; and the influence of the type of blood (capillary or venous) on the results obtained by the glucose monitor with the plasma calibrated strips. Results: Plasma strips give on average 7% higher results than the previous whole blood strips. However, the results given by the plasma strips on capillary whole blood, even if well correlated, are not completely comparable with those given by an analyzer for venous plasma. Nevertheless, these plasma strips and the glucose electrode of a blood gas analyzer give comparable results. Conclusions: Accu-Chek Inform plasma strips are a good method for monitoring of blood glucose values in patients with diabetes. [less ▲]

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See detailMetal catalysts suppported on texture-tailored carbon xerogels
Job, Nathalie ULg; Léonard, Angélique ULg; Colomer, Jean-François et al

in Studies in Surface Science and Catalysis (2006), 162

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See detailRépartition et écologie des reptiles sur le réseau ferroviaire en Wallonie
Graitson, Eric ULg

in Bulletin de la Société Herpétologique de France (2006), 120

In Wallonia, railways constitute valuable habitats for reptile conservation. All autochthonous species have colonized these man-made habitats, but their presence and abundance largely vary among the ... [more ▼]

In Wallonia, railways constitute valuable habitats for reptile conservation. All autochthonous species have colonized these man-made habitats, but their presence and abundance largely vary among the natural regions and the kinds of railways. Reptiles are more frequent along railways with remaining rails than along dismounted unused ways, which represents one half of the network. Although representing only a small part of the network, the unused railways not dismounted are particularly rich in reptiles. This is also the case of some active lines in sunny areas of large valleys and in some large switchyards. Anguis fragilis is the most widespread species on the Walloon railways, but P o d a rcis muralisis the most abundant. In Wallonia, railways seemed to have contributed to the local, more rarely regional, dispersion of at least five species of reptiles: Anguis fragilis, Lacerta agilis, Podarcis muralis, Zootoca viviparaa and Coronella austriaca. Some of these species – specifically Podarcis muralis– have most probably colonized new regions through unexpected transportation by merchandise cars. Finally, reptile populations inhabiting the Walloon railways face several threads. [less ▲]

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