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The last few years have witnessed a significant development in the means to produce and make available multimedia content, namely owing to the democratisation of access to digital picture and video cameras in addition to the gener...
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The last few years have witnessed a significant development in the means to produce and make available multimedia content, namely owing to the democratisation of access to digital picture and video cameras in addition to the generalisation of Internet usage. The trend now is to allow ubiquitous access to this ever-increasing amount of multimedia content, enabling a user to find effectively the desired information. This Special Section of IEE Proceedings Vision, Image & Signal Processing addresses some of the enabling technologies for providing interactive multimedia services. All the papers in this Special Section correspond to extended versions of papers presented at the 5th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS) held in April 21-23, 2004, at the Instituto Superior Te/spl acute/cnico, Lisboa, Portugal.
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Web 2.0 applications allow rich media contents to be exposed and shared by users. Nevertheless, usually, a multimedia is provided as an unicum, made by synchronized media items. Sound tracks, video sequences, captions, cannot be c...
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Web 2.0 applications allow rich media contents to be exposed and shared by users. Nevertheless, usually, a multimedia is provided as an unicum, made by synchronized media items. Sound tracks, video sequences, captions, cannot be customized "on-the-fly" by users. Managing multimedia in a deep way would meet the expectations of nowadays Web prosumers (i.e. producers and consumers), and it would widen the audience. Describing and synchronizing each medium, as well as specifying different alternative contents for it, are the keystones of multimedia customization and of audience widening. This paper presents a multimedia collaborative system, which provides support to the arrangement of medium into a multi-views composed multimedia. Each prosumer can add medium by juxtaposition or by defining it as an alternative (audio, video, textual) version of an existing one. The implementation of such a system is based on SMIL 3.0 specification but implements a new and compact syntax to let users manipulate the original multimedia synchronization and their alternatives. The proposed approach has been put to test in two different scenarios.
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In the article describes methods for modeling the process of building a conceptual model of a multimedia system, described the principal model multimedia system, the development of an algorithm for constructing online system - Des...
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In the article describes methods for modeling the process of building a conceptual model of a multimedia system, described the principal model multimedia system, the development of an algorithm for constructing online system - Designer TIAV-multimedia systems are described information-functional model of the online system constructor TIAV-multimedia systems, presents the conceptual model of the process processing of information resources in TIAV-multimedia systems, as well as the information considered simulation model of discrete-continuous processes processing of information resources.
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In the article describes methods for modeling the process of building a conceptual model of a multimedia system, described the principal model multimedia system, the development of an algorithm for constructing online system - Des...
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In the article describes methods for modeling the process of building a conceptual model of a multimedia system, described the principal model multimedia system, the development of an algorithm for constructing online system - Designer TIAV-multimedia systems are described information-functional model of the online system constructor TIAV-multimedia systems, presents the conceptual model of the process processing of information resources in TIAV-multimedia systems, as well as the information considered simulation model of discrete-continuous processes processing of information resources.
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Previous real-time disk scheduling algorithms assume that each disk request incurs a physical disk mechanical operation and only consider how to move the disk head under real-time constraints. However, with the increased capacity ...
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Previous real-time disk scheduling algorithms assume that each disk request incurs a physical disk mechanical operation and only consider how to move the disk head under real-time constraints. However, with the increased capacity of on-disk cache, modern disk drives read-ahead data aggressively. Thus, the on-disk cache may service many disk requests without incurring physical disk access. By exploring the design methodology of on-disk cache, in this paper, we propose cache-aware real-time disk scheduling algorithms that take the on-disk cache into consideration during scheduling. Therefore, the scheduling algorithm can help the cache replacement scheme to minimize the cache miss ratio. Besides, the service timing estimation is more accurate in schedulability analysis since the cache effect is considered during scheduling. A simulation-based evaluation shows the proposed scheduling algorithms to be highly successful as compared with the classical real-time disk scheduling algorithms. For example, under sequential workload with 10 sequential streams, the data throughput of our scheme is 1.1 times that of DM-SCAN.
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This retrospective article examines the past two decades of multimedia systems research through the lens of three research topics that were in vogue in the early days of the field and offers perspectives on the evolution of these ...
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This retrospective article examines the past two decades of multimedia systems research through the lens of three research topics that were in vogue in the early days of the field and offers perspectives on the evolution of these research topics. We discuss the eventual impact of each line of research and offer lessons for future research in the field.
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As multimedia applications spread widely, it is crucial for programming and design support systems to han- dle "time" in multimedia documents effectively and flexibly. This paper presents a set of interactive system support tools ...
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As multimedia applications spread widely, it is crucial for programming and design support systems to han- dle "time" in multimedia documents effectively and flexibly. This paper presents a set of interactive system support tools For designing and maintaining the temporal behavior of mul- Timedia documents. The tool set provides mechanisms for Anomaly detection, temporal query processing, and interac- Tive scheduling.
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People use various Internet-based services including social networks to conduct tasks of diversified categories such as informational, professional, educational, hobbies, health, recreational, academic, and news. Many people not o...
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People use various Internet-based services including social networks to conduct tasks of diversified categories such as informational, professional, educational, hobbies, health, recreational, academic, and news. Many people not only maintain association with a number of different services but also share information with their social ties in their daily life. However, a person only consumes a subset of services and needs to communicate with a subset of social ties at any given context. In this paper, we present a framework called SenseFace that leverages sensory data coming from one's body sensor network and multimedia information contained within Internet-based services to recommend context-aware services and community of interest. We present the detailed design and implementation of the framework and share our preliminary test results.
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In this paper the authors define a novel data model for Multimedia Social Networks (MSNs), i.e. networks that combine information on users belonging to one or more social communities together with the multimedia content that is ge...
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In this paper the authors define a novel data model for Multimedia Social Networks (MSNs), i.e. networks that combine information on users belonging to one or more social communities together with the multimedia content that is generated and used within the related environments. The proposed model relies on the hypergraph data structure to capture and to represent in a simple way all the different kinds of relationships that are typical of social networks and multimedia sharing systems, and in particular between multimedia contents, among users and multimedia content and among users themselves. Different applications (e.g. influence analysis, multimedia recommendation) can be then built on the top of the introduce data model thanks to the introduction of proper user and multimedia ranking functions. In addition, the authors provide a strategy for hypergraph learning from social data. Some preliminary experiments concerning efficiency and effectiveness of the proposed approach for analysis of Last.fm network are reported and discussed.
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