Luigi Atzori - Böcker

Multimedia Quality of Experience (QoE)Current Status and Future Requirements Multimedia Quality of Experience (QoE): Current Status and Future Requirements discusses the current status of QoE (Quality of Experience) research, providing guidelines on QoE assessment and management practice. Moreover, it covers many different aspects of QoE research, including definitions, standardization (ITU, ETSI, IEEE, IETF), measurement, management, and architectures. In addition, the authors bring together contributions from recognized experts (worldwide) in the area of subjective and objective QoE video assessment. Discusses the current status of QoE research; reporting the latest advances from various standardization bodies Provides guidelines on QoE assessment and management practice Explores methods, means, and architectures of QoE Considers future requirements of QoE

In the last few years, a stimulating idea is fast emergingin the wireless scenario: the pervasive presence around us of a variety of "things" or "objects", such as RFID, sensors, actuators, mobile phones, which, through unique addressing schemes, are able to interact with each other and cooperate with their neighboring "smart" c- ponents to reach common goals. This novel paradigm, named "The Internet of Things" (IoT) continues on the path set by the concept of smart environments and paves the way to the depl- ment of numerous applications with a signi cant impact on many elds of future every-day life. In this context, logistics, Intelligent Transportation Systems (ITS), business/process management,assisted living, and e-health are only a few examples of possible application elds in which this novel paradigm will play a leading role in the next future. Actually,manychallengingissues still needto be addressedand both technolo- calandsocialnodesuntiedbeforethe IoTideabeingwidelyaccepted.Centralissues are making a full interoperabilityof such devices possible, enablingtheir adaptation and autonomousbehavior, as well as guaranteeingtrust, privacy,and security.Also, the IoT idea poses several new problemsconcerningthe networkingaspects. In fact, the "things" composing the IoT will be characterized by low resources in terms of both computation and energy capacity. Accordingly, the proposed solutions need to payspecial attentionto resourceef ciencybesides the obviousscalability problems. The papers included in this volume present a picture of the current state of the art on the above issues; more speci cally, concepts and ideas are discussed on n- working, middleware, security and privacy, RFID and sensor networks, as well as electromagnetic aspects.

In the last few years, a stimulating idea is fast emergingin the wireless scenario: the pervasive presence around us of a variety of "things" or "objects", such as RFID, sensors, actuators, mobile phones, which, through unique addressing schemes, are able to interact with each other and cooperate with their neighboring "smart" c- ponents to reach common goals. This novel paradigm, named "The Internet of Things" (IoT) continues on the path set by the concept of smart environments and paves the way to the depl- ment of numerous applications with a signi cant impact on many elds of future every-day life. In this context, logistics, Intelligent Transportation Systems (ITS), business/process management,assisted living, and e-health are only a few examples of possible application elds in which this novel paradigm will play a leading role in the next future. Actually,manychallengingissues still needto be addressedand both technolo- calandsocialnodesuntiedbeforethe IoTideabeingwidelyaccepted.Centralissues are making a full interoperabilityof such devices possible, enablingtheir adaptation and autonomousbehavior, as well as guaranteeingtrust, privacy,and security.Also, the IoT idea poses several new problemsconcerningthe networkingaspects. In fact, the "things" composing the IoT will be characterized by low resources in terms of both computation and energy capacity. Accordingly, the proposed solutions need to payspecial attentionto resourceef ciencybesides the obviousscalability problems. The papers included in this volume present a picture of the current state of the art on the above issues; more speci cally, concepts and ideas are discussed on n- working, middleware, security and privacy, RFID and sensor networks, as well as electromagnetic aspects.

This book is a post-conference publication and contains a selection of papers presented at the VLBV workshop in 2005, which was held in Sardinia, Italy, on September 15-16. VLBV 2005 attracted very high interest among the scienti?c community, and the workshop received 85 submissions. Fifty-?ve papers were accepted and presented in three poster sessions focusing on “New Perspectives in Handling Multimedia Data”, “Wavelet Based Compression: Advances and Perspectives”, and “Applications of Distributed Video Coding”. Beyondprovidingaforumforthepresentationofhigh-qualityresearchpapers in various complementary aspects of visual content processing and distribution, the workshop gave the opportunity of exchanging ideas and opinions on hot topics in the ?elds by means of three open panels. The ?rst was devoted to the role of standards, with the attempt of both panelists and audience to provide answers to challenging questions on the success of standards, their industrial spino?, and the involvement of academic people in standardization activities. The second panel aimed to discuss the advances and the perspectives of wavelet based compression. The third one focused on the applications of distributed video coding; the discussion mainly regarded the real performance of such an approach in video coding when compared with traditional approaches. In addition to these components, the program was enriched by two sti- lating invited talks given by world-renowned researchers in the ?eld: “Digital Cinema”, by Michael W. Marcellin and “Distributed Video Coding”, by Bernd Girod.