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In this paper we describe a parallel architecture for motion estimation based on the Full Search Block Matching Algorithm. The distinctive characteristic of the proposed architecture is its suitability to be implemented both in a high performance dedicated device for embedded systems (e.g. an ASIC) and on mesh connected SIMD massively parallel computers. The paper describes the first of these options...
In this paper we propose to introduce execution autonomy in the SIMD paradigm to overcome its rigidity while preserving the advantages of its synchronous programming model and we show that Virtual Parallelism support is a necessary condition to the profitable application of execution autonomy. We define execution autonomy as the capability of each processing element of a massively parallel computer...
This paper describes a new parallel algorithm for Minimum Cost Path computation on the Polymorphic Processor Array, a massively parallel architecture based on a reconfigurable mesh interconnection network. The proposed algorithm has been implemented using the Polymorphic Parallel C language and has been validated through simulation. The proposed algorithm for the Polymorphic Processor Array, delivers...
This paper describes the design of a MPEG coding algorithm targeted to compress video sequences generated by highway surveillance cameras. The physical constraints of vehicles as well as the geometry of the highway environment projected into the camera determine a relevant base of a-priori knowledge, which allows obtaining considerable processing speed up as well as higher compression ratio. This...
The adoption of IT-based interfaces to monitor and control telco capabilities is a consolidated approach. In such a scenario the end-users design composite services that orchestrate functions implemented through one or more resources managed by telecom operators. In addition to the issues that have to be faced to support the design of composite services in general, in this case it is also necessary...
The high availability of information provided through standards typical of the Web 2.0 world (e.g. RSS feed, atom, etc.) and services exposed by means of Web service API (see [1] for a list of more than 1300 APIs) leads to the development of new tools for the rapid creation of applications-called mashups-that combine these different sources. More specifically we refer to the event driven class of...
The diffusion of Telco/IT Mashups, i.e., those service compositions that combine data sources and telecom services, seems to require the development of appropriate ecosystems in which small size companies, called ??3rd Parties??, ideate, implement and deploy the Mashups and make them available to end users through Service Delivery Platform operated by platform operators. While from the technical point...
The passive estimation of Internet access capacity is interesting both from a scientific perspective, because it requires the development of techniques and tools to extract such a capacity from a noisy set of traffic measurements; and from an industrial perspective, because it supports, in principle, the possibility to measure the Service Levels of IP Access Service offered by Internet service providers...
This paper presents a system for remote vehicle inspection developed within the VISIONS (vehicular system interface for open network service) research project funded by the European Commission. The system architecture allows digital service exchange between vehicles and road infrastructures (e.g., road, tunnel, terminal containers) and makes available a large set of significant vehicle data (e.g.,...
This paper presents the architecture, the system implementation and the performance evaluation of an innovative Internet-based service for object position tracing and tracking (T&T). It supports "full" T&T, as tracking data are not limited only to warehouse check-ins/checkouts, but are extended to the whole transport process, i.e., even when the traced item is on the road, taking...
Massively parallel computers are implemented by means of modules at different packaging levels. This paper discusses a hierarchical node clustering scheme (HNC) for packaging a class of reconfigurable processor arrays called Polymorphic Processor Array (PPA) which uses circuit-switchingbased routers at each node to deliver a different topology at every instruction. The PPA family suffers from an unknown...
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