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- Renato Stefanelli, Azriel Rosenfeld
- J. ACM
- 1971

If a picture contains elongated objects of different thicknesses, one can make measurements on it which are thickness-invariant by first transforming it so that each object is thinned down to a "medial line" of constant thickness. Several algorithms are described which perform such a thinning transformation when applied to the picture in parallel. It is… (More)

- Roberto M. Negrini, Mariagiovanna Sami, Renato Stefanelli
- MIT Press series in computer systems
- 1989

- Mariagiovanna Sami, Renato Stefanelli
- AFIPS National Computer Conference
- 1983

Definition of architectures capable of fault tolerance and reconfiguration, suitable for very large scale integration (VLSI) implementation, is an important problem with regard to both production yield and run-time availability of VLSI devices. The case considered in the present paper concerns regular arrays of processing elements, such as the ones found in… (More)

- Marco Annaratone, Renato Stefanelli
- 1983 IEEE 6th Symposium on Computer Arithmetic…
- 1983

This paper presents a technique for increasing the reliability of arithmetic units. An error model is then presented; this model we'll represents the faulty behavior of many arithmetic units. The Residue Number System and its related properties are used in order to obtain a simple architecture (called Reliability Network, R-Net). The main characteristics of… (More)

- Renato Stefanelli
- IEEE Trans. Computers
- 1972

- Virginio Cantoni, Marco Ferretti, Stefano Levialdi, Renato Stefanelli
- 1985 IEEE 7th Symposium on Computer Arithmetic…
- 1985

In 1981 a national research program for the design, simulation and construction of a multiprocessor image processing system was started. After a first phase devoted to the comparison of suggested and existing systems and to the definition of a set of benchmarks and to the evaluation of the performances of the major classes of machines, a new system has been… (More)