Search results for "ARTIFICIELLE"
showing 10 items of 38 documents
Depth Attention for Scene Understanding
2022
Deep learning models can nowadays teach a machine to realize a number of tasks, even with better precision than human beings. Among all the modules of an intelligent machine, perception is the most essential part without which all other action modules have difficulties in safely and precisely realizing the target task under complex scenes. Conventional perception systems are based on RGB images which provide rich texture information about the 3D scene. However, the quality of RGB images highly depends on environmental factors, which further influence the performance of deep learning models. Therefore, in this thesis, we aim to improve the performance and robustness of RGB models with comple…
Apparence des matériaux, Vision artificielle, Inspection qualité, Reflectance Transformation Imaging
2022
Mastering the visual perception of the surfaces of manufactured products is a central issue for industry. However, in industry, the quality of surfaces is often assessed by human inspectors. Only a few specific cases use an instrumental or photometric approach. Among the photometric approaches, one of them is experiencing significant growth: Reflectance Transformation Imaging (RTI). However, this technique has limitations in terms of data acquisition and processing. The objective is therefore to correct some of these limitations in order to improve the RTI and, consequently, the visual quality control of surface conditions in industry.The current RTI systems are limited and cannot meet our …
Finte Pietre. Architettura dell'apparire e conservazione dei valori culturali
2012
Il volume presenta gli esiti di una ricerca incentrata sulla conoscenza delle finiture architettoniche di pietra artificiale, con particolare attenzione agli intonaci brevettati nel 1901 dai fratelli Li Vigni. Le attività di studio sono condotte attraverso la ricognizione dei documenti conservati presso l’Archivio Centrale dello Stato a Roma, e compiono una rigorosa selezione e analisi dei brevetti con l’obiettivo di tracciare il percorso evolutivo dei metodi d’intonacatura ed evidenziare i legami che s’instaurano tra le ricerche in corso nei diversi paesi. Nel XIX secolo i ricercatori di molte nazionalità avviano una selezione critica delle ricette tramandate dal passato e perfezionano pro…
Le superfici di pietra artefatta. Conoscenza e diagnosi per la conservazione.
2009
La tesi di dottorato è incentrata sullo studio delle finiture architettoniche di pietra artificiale realizzate con metodi o ricette coperte da brevetto in Italia. La ricerca, dopo avere descritto le ricette e metodi per simulare le pietre naturali, propone una metodologia analitica diagnostica per la conservazione delle superfici architettoniche e mostra gli esiti delle sue applicazioni sperimentali. The PhD thesis is focused on the study of architectural finishes of artificial stone patented in Italy. The research, after presenting the recipes and methods to simulate natural stones, proposes an analytical diagnostic method for the conservation of architectural surfaces and shows the result…
Use the artificial Intelligent in order to Define Skills in Higher Education
2012
In order to increase the level of learning and the rate of success of students the educational policy tries to find a way to increase simultaneously the skills and the knowledge of students especially in higher education. Many approaches have aimed to find the solutions. To reach this goal normally the combination of the various sciences can be more effective than one branch. Then we interested to know how the other science can help us to be close to this goal. The artificial intelligence (AI) is a branch of science that has a very wide domain of using. It can help us in various sciences like electronic, animation, medicine, banking, industries, exploitation, robotic, security and even spea…
How Artificial Intelligence Can link With Human Sciences
2013
International audience; Enhancing students' level of learning and ensuring academic success are the final goals of educational policy. To reach these goals, such policy seeks a way to simultaneously increase the skills and knowledge of students. We were interested to explore how the other sciences can help us draw closer to this goal. We therefore aim to demonstrate in this article an approach to help students at university find solutions to their learning problems. In an attempt to reach this goal, we suggest that other sciences can help us to the extent that the combination of the various sciences can be more effective than a single branch. Artificial intelligence (AI) is a branch of scie…
Du comptage ponctuel à l'affectation par simulation multi-agents : application à la circulation routière de la ville de Dijon
2014
A travers une démarche expérimentale de simulation de la circulation routière pour estimer les pollutions atmosphériques en milieu urbain, cette proposition questionne les opportunités qu'offre la simulation multi-agents pour intégrer des données d'observations du trafic routier au sein d'un système d'information géographique. Pour cela, la construction du modèle d'affectation s'est faite en deux étapes : une première, d'acquisition et de structuration des données de comptages et une seconde visant à interfacer ces données au sein d'une plateforme de simulation multi-agents pour en reproduire la variabilité intra journalière et la fréquentation routière.
Digitization and characterization of local reflectance of complex surfaces for visual inspection
2022
Mastering the visual perception of the surfaces of manufactured products is a central issue for industry. However, in industry, the quality of surfaces is often assessed by human inspectors. Only a few specific cases use an instrumental or photometric approach. Among the photometric approaches, one of them is experiencing significant growth: Reflectance Transformation Imaging (RTI). The RTI makes it possible to obtain a reduced and simplified estimate of the Bidirectional Reflectance Distribution Function (BRDF) and an estimate of the geometry of the surface. However, this technique has limitations in terms of data acquisition and processing. The objective is therefore to correct some of th…
Modeling and Coordination of interconnected microgrids using distributed artificial intelligence approaches
2019
As renewable sources penetrate the current electrical system to relief global warming and energy shortage, microgrid (MG) emerges to reduce the impact of intermittent generation on the utility grid. Additionally, it improves the automation and intelligence of the power grid with plug-and-play characteristics. Inserting more MGs into a distribution network promotes the development of the smart grid. Thus MG networks existing in the power system are in prospect. Coordinating them could gain a system with high reliability, low cost, and strong resistance to electrical faults. Achieving these profits relies on developed technologies of communication, control strategy, and corresponding algorith…
Research and implementation of artificial neural networks models for high velocity oxygen fuel thermal spraying
2020
In the high velocity oxygen fuel (HVOF) spray process, the coating properties are sensitive to the characteristics of in-flight particles, which are mainly determined by the process parameters. Due to the complex chemical and thermodynamic reactions during the deposition procedure, obtaining a comprehensive multi-physical model or analytical analysis of the HVOF process is still a challenging issue. This study proposes to develop a robust methodology via artificial neural networks (ANN) to solve this problem for the HVOF sprayed NiCr-Cr3C2 coatings under different operating parameters.First, 40 sets of HVOF spray experiments were conducted and the coating properties were tested for analysis…