Search results for "2020"
showing 10 items of 4977 documents
Toward a real-time tracking of dense point-sampled geometry
2012
4 pages; International audience; In this paper, we address the problem of tracking temporal deformations between two arbitrary densely sampled point-based surfaces. We propose an intuitive and efficient resolution to the point matching problem within two frames of a sequence. The proposed method utilizes two distinct space partition trees, one for each point cloud, which both are defined on a unique discrete space. Our method takes advantage of multi-resolution concerns, voxel adjacency relations, and a specific distance function. Experimental results obtained from both simulated and real reconstructed data sets demonstrate that the proposed method can handle efficiently the tracking proces…
SfM Techniques Applied in Bad Lighting and Reflection Conditions: The Case of a Museum Artwork
2019
In recent years, SfM techniques have been widely used especially in the field of Cultural Heritage. Some applications, however, remain undefined in cases where the boundary conditions are not suitable for the technique. Examples of this are instances where there are poor lighting conditions and the presence of glass and reflective surfaces. This paper presents a case study where SfM is applied, using a DSLR camera (Nikon D5200), to the “Head of Hades” inside a glass theca and under a large number of light sources at different distances and of different intensities and sizes. The geometric evaluation has been made comparing the DSLR camera model against the 3D data acquired with structured l…
Non-convex power allocation games in MIMO cognitive radio networks
2013
Consideramos un escenario de reparto del espectro, basado en la detección, en una red de radio cognitiva MIMO donde el objetivo general es maximizar el rendimiento total de cada usuario de radio cognitiva optimizando conjuntamente la operación de detección y la asignación de potencia en todos los canales, bajo una restricción de interferencia para los usuarios primarios. Los problemas de optimización resultantes conducen a un juego no convexo, que presenta un nuevo desafío a la hora de analizar los equilibrios de este juego. Con el fin de hacer frente a la no convexidad del juego, utilizamos un nuevo concepto relajado de equilibrio, el equilibrio cuasi-Nash (QNE). Se demuestran las condicio…
Problem Space Identification for Developing Virtual Reality Learning Environments
2021
Our study argues that the extant literature on virtual reality-based learning environments (VRLEs) currently lacks proper definitions and context descriptions for a problem space, which is fundamental for conducting design science research (DSR). Without properly conducted problem space identification, the most pivotal problems cannot be identified resulting solutions lacking validity and unreliable evaluations. This is a major challenge for the DSR in the educational field, but also for the research on VRLEs. The purpose of this paper is to introduce a novel DSR method to support rigorous problem space identification, which would allow rigorous and profound problem space analysis. The inst…
Análisis funcional de utillaje sobre caliza del nivel XII (MIS 6) de la Cova del Bolomor (Tavernes de la Valldigna, Valencia). Estudio experimental y…
2016
En el trabajo se analiza desde el punto de vista funcional un conjunto de materiales líticos del nivel XII de la Cova del Bolomor (Tavernes de la Valldigna, Valencia), compuesto en su mayoría por utillaje sobre lasca realizado en caliza.El tema de las tesis presenta, por tanto, dos ámbitos de investigación. Por un lado, y a través del análisis de las huellas de uso del material lítico de la Cova del Bolomor, proceder a la identificación de los aspectos funcionales de los útiles, los cuales pueden contribuir a la caracterización de las diferentes ocupaciones de la cueva, y suponen un avance en el conocimiento de las formas de vida de los grupos humanos del Pleistoceno Medio.Este estudio pres…
A flexible and reconfigurable 5G networking architecture based on context and content information
2017
The need for massive content delivery is a consolidated trend in mobile communications, and will even increase for next years. Moreover, while 4G maturity and evolution is driven by video contents, next generation (5G) networks will be dominated by heterogeneous data and additional massive diffusion of Internet of Things (IoT). The current network architecture is not sufficient to cope with such traffic, which is heterogeneous in terms of latency and QoS requirements, and variable in space and time. This paper proposes architectural advances to endow the network with the necessary flexibility helping to adapt to these varying traffic needs by providing content and communication services whe…
Designing the 5G network infrastructure: a flexible and reconfigurable architecture based on context and content information
2018
5G networks will have to offer extremely high volumes of content, compared to those of today’s. Moreover, they will have to support heterogeneous traffics, including machine-to-machine, generated by a massive volume of Internet-of-Things devices. Traffic demands will be variable in time and space. In this work, we argue that all this can be achieved in a cost-effective way if the network is flexible and reconfigurable. We present the Flex5Gware network architecture, designed to meet the above requirements. Moreover, we discuss the links between flexibility and reconfigurability, on the one side, and context awareness and content awareness, on the other; we show how two of the building…
Learning automata based energy-efficient AI hardware design for IoT applications
2020
Energy efficiency continues to be the core design challenge for artificial intelligence (AI) hardware designers. In this paper, we propose a new AI hardware architecture targeting Internet of Things applications. The architecture is founded on the principle of learning automata, defined using propositional logic. The logic-based underpinning enables low-energy footprints as well as high learning accuracy during training and inference, which are crucial requirements for efficient AI with long operating life. We present the first insights into this new architecture in the form of a custom-designed integrated circuit for pervasive applications. Fundamental to this circuit is systematic encodin…
Public policy in families and successions regulations : the case of ?talaq?
2021
According to EU Regulations on transnational families and successions, a foreign rule remains without effect if it is deemed contrary to the so-called public policy (ordre public) of the forum?s legal system. As a consequence, judges have to evaluate whether the application of foreign law is incompatible with fundamental principles of the domestic law, especially whether it would constitute a violation against human rights. An outstanding controversial issue is today represented by Islamic repudiation (talaq): two contrasting Italian judicial decisions of August 2020 may illustrate how difficult it could be to determine what public policy is.
La constitución del parlamento en caso de presuntas irregularidades electorales: Comentario a la stedh de 10 de julio de 2020 : Caso mugemangango c. …
2021
The ECHR analyzes, through this judgment, a claim based on the violation of the rights to free elections and to an effective remedy, the origin of which is found in a series of alleged electoral irregularities. The national body that had to resolve this issue was not impartial, and the complaint procedure lacked adequate and sufficient guarantees