Search results for "multimedia"
showing 10 items of 692 documents
Media Delivery to Remote Renderers Controlled by the Mobile Phone
2009
In today's content delivery solutions, service delivery and control are still tightly coupled, a service typically being delivered to the same device that controls the session. We present a solution that was designed with the goal to decouple service control and delivery. Using our approach, multimedia streaming services can be delivered to off-the-shelf DLNA devices in visited networks. The service provider receives information about the remote media player and access environment via a mobile phone. Proximity technologies (e.g. barcodes, NFC) of the control device are used for the exchange of required credentials. This paper describes a typical scenario and our prototype implementation.
Second Opinion System for Intraoral Lesions
2014
In this paper we present the prototype of a teledentistry system to perform the remote diagnosis of oral diseases. It makes use of a particular device called intra-oral (or dental) camera properly designed to shoot video and take pictures of the inner part of the mouth. The intra-oral cameras can be connected via USB to a common PC and they are very cheap, unlike the intra-oral photography kit for DSLR cameras. Usually this kind of devices are used in dentistry studies for local visualization by means of specialized software. The novelty of our system is that the real-time video produced by this device is canalized into a video streming by means of Video LAN client server (VLC) and pictures…
An RFID framework for multimodal service provision
2009
In recent years there has been a growing interest toward the development of pervasive and context-aware services, and RFID technology played a relevant role in the context sensing task. We propose the use of RFID technology together with a conversational agent in order to implement a multimodal information retrieval service we call SensorMesh. The information acquired from RFID tags about the nearest point of interest is processed by the conversational agent that carries a more natural interaction with the user, also exploiting a common sense ontology. The service is accessible using a multimodal browser on Personal Digital Assistants (PDAs); the browser allows the user to interact with the…
A Data-Driven Architecture for Personalized QoE Management in 5G Wireless Networks
2017
With the emergence of a variety of new wireless network types, business types, and QoS in a more autonomic, diverse, and interactive manner, it is envisioned that a new era of personalized services has arrived, which emphasizes users' requirements and service experiences. As a result, users' QoE will become one of the key features in 5G/future networks. In this article, we first review the state of the art of QoE research from several perspectives, including definition, influencing factors, assessment methods, QoE models, and control methods. Then a data-driven architecture for enhancing personalized QoE is proposed for 5G networks. Under this architecture, we specifically propose a two-ste…
An interest-aware video streaming platform: Shaping its architecture to better suit users' demands
2014
This paper investigates how a p2p television platform can take advantage of the presence of frequent channel viewers to grant them a more satisfying service than to less regular spectators. The idea we explore is to learn beforehand about the users’ interests, in order to cluster them in groups that display different behaviors; then, the video chunk scheduling algorithm of the p2p overlay is altered, with the aim of serving frequent spectators in a privileged manner, providing them with a faster access to the selected channel. An analytical model is developed, to capture the difference in startup delay that the proposed changes introduce; several additional performance metrics are numerical…
A Multimodal Guide for the Augmented Campus
2007
The use of Personal Digital Assistants (PDAs) with ad-hoc built-in information retrieval and auto-localization functionalities can help people navigating an environment in a more natural manner compared to traditional audio/visual pre-recorded guides. In this work we propose and discuss a user-friendly, multi-modal guide system for pervasive context-aware service provision within augmented environments. The proposed system is adaptable to the user needs of mobility within a given environment; it is usable on different mobile devices and in particular on PDAs, which are used as advanced adaptive HEI (human-environment interaction) interfaces. An information retrieval service is provided that…
Visualization of EDI messages
2003
Multi-organizational EDI message networks are complicated communication environments with various standards and technologies. The role of third party message exchange hubs has become more important and their tasks more difficult. Current development activities for supporting the utilization of XML in electronic commerce focuses on message standardization and specification of common business architectures, processes, and web practices. A need to visualize EDI messages in different contexts to human readers has received insufficient attention in ongoing activities. In this paper we discuss problems and approaches related to the visualization of EDI messages in XML format. An idea of a standar…
Secure interworking with P2PSIP and IMS
2010
In this paper, we propose a secure system model for interconnection between P2PSIP and IMS domains. The interworking solution is based on P2P-IMS GateWay (PIGW), which acts as a normal peer in P2PSIP network and a 3rd party IMS Application Server (AS) in IMS network. The security is achieved by implementing Chord Secure Proxy (CSP) and enhanced with subjective logic based trust model. We also implement this system model and analyze it in several aspects: number of hops and delay, trust improvement and protection against malicious or compromised intermediate peers. We conclude that the proposed architecture is feasible and improves security. As far as we know our research is the first study …
Protesi | Materiali di Design
2015
Le Tesi di Laura, si potrebbe dire, non sono più come una volta. E già, oggi c’è il cosiddetto “elaborato breve”, una cosetta agile per acchiappare al volo l’altrettanto agile “pezzo di carta”: la sempre meno aurea e sempre più aerea Laurea. Eppure, mi chiedo: che se ne fa un (neo)designer della Laurea? Non può iscriversi a un albo, come un architetto o un ingegnere. E poi in Italia quanto vale la Laurea, specialmente quando il 110 e lode è diventato dozzinale? In effetti, non soltanto il massimo dei voti è ormai più che diffuso, ma siamo sicuri che tutti questi designer titolati, e in generale laureati da 110 e lode, abbiano poi idea di come si fa ciò per cui hanno studiato? E ancora: a ch…
NUOVE FRONTIERE MUSEOGRAFICHE : immaterialità e multimedialità del museo narrativo
2021
Il contributo esplora, anche attraverso la lettura di alcuni casi studio, gli aspetti costitutivi e connotativi di ciò che può essere definita la nuova ‘frontiera della museografia’. Una ‘frontiera’ riconoscibile nella definizione di museo strutturato secondo il concetto ‘dell’allestimento integrato’ che si basa, prevalentemente, sul connubio tra strumentazioni tecnologiche avanzate, arte e interattività dei sistemi divulgativi dei contenuti museografici. In questi ultimi anni sono state sviluppate diverse esperienze museali caratterizzate da indagini sui nuovi linguaggi tecnologici, ma che non tralasciano la fondamentale elaborazione di scopi e contenuti degli stessi progetti allestitivi c…