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The PAPIA system
Authors:V. Cantoni   V. Gesu   M. Ferretti   S. Levialdi   R. Negrini  R. Stefanelli
Affiliation:(1) Dipartimento di Informatica e Sistemistica, Università di Pavia, Pavia, Italy;(2) Dipartimento di Matematica ed Applicazioni, Università di Palermo, Palermo, Italy;(3) IFCAI-CNR, Palermo;(4) Dipartimento di Matematica, Università La Sapienza, Roma, Italy;(5) Dipartimento di Elettronica, Politecnico di Milano, Milano, Italy
Abstract:In 1983 an Italian research program was begun for the design, simulation and construction of a multiprocessor image processing system. After a first phase devoted to the comparison of suggested and existing systems and to the definition of a set of benchmarks, a new system was defined. The structure of this new system is introduced here: it is based on a fine-grained pyramid of processors built up by means of a pyramidal cell implemented on a VLSI multiprocessor chip. The peculiarities and the capabilities of the processing element are highlighted. The complete hardware and software system has been fully designed and is described. A first working prototype has been built and is now operational.
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