Search results for "Systems Science"
showing 9 items of 129 documents
3D landmark detection for augmented reality based otologic procedures
2019
International audience; Ear consists of the smallest bones in the human body and does not contain significant amount of distinct landmark points that may be used to register a preoperative CT-scan with the surgical video in an augmented reality framework. Learning based algorithms may be used to help the surgeons to identify landmark points. This paper presents a convolutional neural network approach to landmark detection in preoperative ear CT images and then discusses an augmented reality system that can be used to visualize the cochlear axis on an otologic surgical video.
Refitting solutions promoted by $\ell_{12}$ sparse analysis regularization with block penalties
2019
International audience; In inverse problems, the use of an $\ell_{12}$ analysis regularizer induces a bias in the estimated solution. We propose a general refitting framework for removing this artifact while keeping information of interest contained in the biased solution. This is done through the use of refitting block penalties that only act on the co-support of the estimation. Based on an analysis of related works in the literature, we propose a new penalty that is well suited for refitting purposes. We also present an efficient algorithmic method to obtain the refitted solution along with the original (biased) solution for any convex refitting block penalty. Experiments illustrate the g…
Generic Data Models for Semantic e-Government Interoperability : Literature Review
2014
Interoperability of e-government systems is suggested to increase transparency, efficiency, effectiveness, and customer service in the public sector. Generic data models are often seen as a way for achieving especially semantic interoperability. To assess how the contemporary data models support semantic egovernment interoperability, we reviewed literature on data models suggested for the public sector in light of four features: standard modelling language, entityrelationship modelling, vocabulary for data exchange and methodology. The review contributes previous research by introducing a four-feature framework for assessing capability of e-government data models to enhance interoperability…
Joint Sub-Carrier and Power Allocation for Efficient Communication of Cellular UAVs
2020
| openaire: EC/H2020/857031/EU//5G!Drones Cellular networks are expected to be the main communication infrastructure to support the expanding applications of Unmanned Aerial Vehicles (UAVs). As these networks are deployed to serve ground User Equipment (UEs), several issues need to be addressed to enhance cellular UAVs’ services. In this paper, we propose a realistic communication model on the downlink, and we show that the Quality of Service (QoS) for the users is affected by the number of interfering BSs and the impact they cause. The joint problem of sub-carrier and power allocation is therefore addressed. Given its complexity, which is known to be NP-hard, we introduce a solution based …
Image inpainting using directional wavelet packets originating from polynomial splines
2020
The paper presents a new algorithm for the image inpainting problem. The algorithm is using a recently designed versatile library of quasi-analytic complex-valued wavelet packets (qWPs) which originate from polynomial splines of arbitrary orders. Tensor products of 1D qWPs provide a diversity of 2D qWPs oriented in multiple directions. For example, a set of the fourth-level qWPs comprises 62 different directions. The properties of the presented qWPs such as refined frequency resolution, directionality of waveforms with unlimited number of orientations, (anti-)symmetry of waveforms and windowed oscillating structure of waveforms with a variety of frequencies, make them efficient in image pro…
Проблемы научного управления социалистическим обществом. Выпуск 4
1977
Информация является центральной категорией управления. Научное управление на современном этапе невозможно без создания автоматизированных систем управления - АСУ, которые могут эффективно функционировать только при наличии четких информационно-поисковых языков или четкой классификации информации.
ЭВМ в образовании. Педагогические программные средства
1989
Cборник содержит 18 статей, отражавших результаты исследований по общим и прикладным вопросам применения компьютера в образовании. Рассматривается научные, методические и практические аспекты разработки программно- методического обеспечения для обучения информатике, педагогических программных средств (ППС) для предметов естественно-научного цикла, а также базового и инструментального программного обеспечения.
ЭВМ в образовании. Программное обеспечение
1988
Сборник посвящен научным и методическим проблемам адаптации, разработки и стандартизации педагогических программных средств (ППС) для применения при изучении информатики и вычислительной техники, предметов естественно-научного цыкла, а также разработке некоторых инструментальных средств создания ППС.
Информатика: ЭВМ в образовании
1991
Cборник содержит 16 статей, отражавших результаты исследований по общим и прикладным вопросам применения компьютера в образовании. Рассматривается научные, методические и практические аспекты разработки содержания образовани в условиях компьютеризации, программно-методического обеспечения для обучения информатике.