DISI - University of Genova




Official Web Site: http://www.disi.unige.it


Role and contribution

The role of DISI in the project is primarily concerned with software design and development. DISI will contribute regarding 3D reconstruction and mosaicing from range data, multiresolution modelling and augmented reality visualisation. In particular, DISI is responsible for WP5, and it contributes heavily in WP6. Moreover, it will contribute in the system specification, integration and validation activities.



DISI (Dipartimento di Informatica e Scienze dell'Informazione), the Department of Computer and Information Sciences of the University of Genova, has been established in 1992. It has been rapidly growing and its teaching and research staff consists presently of 24 people, among which 8 full professors, plus about 20 PhD students involved in research activities. The main research areas at DISI include Formal Methods, Computer Graphics and Computational Geometry, Object Oriented and Logic Programming, Performance Evaluation, Semantics and Logic, Databases and Information Systems, Design and Implementation of Languages and Systems.

DISI and its members are actively engaged in many national and international research projects (both with academia and industry), among which Esprit BR WG APPSEM, Esprit BRA POSSO, Esprit BR WG ISCORE, HCM EXPRESS, HPRN MINGLE; some notable projects in the past are Brite BRA VENICE, HCM SPACENET, HCM MEDICIS, Esprit BR WG COMPASS, Esprit BRA CLICS, HCM MATCH, MAP project on ADA Formal Definition, and Esprit DRAGON.  There are also some strong connections and collaborations with research centres in the United States, in particular with SRI (Stanford Research Institute), Department of Computer Science of the University of Maryland, and Rensselaer Polytechnic Institute.

The Computer Graphics and Geometric Modelling Group at DISI has several years of expertise and is widely known in the international scientific community. In particular, the group is well-known for its research activities in: the design of multiresolution models and data structures for representation and manipulation of solid objects and surfaces; the reconstruction of 3D surfaces and object models from sampled data; the design of geometric models and algorithms for applications in Geographical Information Systems; the development of sophisticated tools for 3D data visualisation.



The following computing resources are available at DISI for  the project: two PC workstations with processor Athlon K7 500Mhz, 256Mb RAM and TNT2 graphics board; one SGI workstation model Indigo2 with R10000 processor, 128Mb RAM; one SGI workstation model Indy with R5000 processor, 64 Mb RAM.


Key personnel

  • Enrico Puppo is Associate Professor of  Computer Science at the University of Genova since 1998. He received a Laurea  degree in Mathematics from the University of Genova in 1986. From 1988 to 1998 he has been research scientist of the National Research Council of Italy. Between 1989 and 1992 he has been several times visiting researcher at the Center for Automation Research of the University of Maryland. Enrico Puppo has written over 60 international scientific publications on the subjects of algorithms and data structures for spatial data handling, geometric modelling, computational geometry, and image processing. He is member of the Editorial Boards of international journal GeoInformatica and of international series Research Momographs in Geographic Information Systems. He served as a member of the scientific committee in several international conferences.
  • Leila De Floriani is  Professor of Computer Science at the University of Genova since 1990. She received a Laurea  degree in Mathematics from the University of Genova in 1977. From 1977 to 1981 she was a research associate at the Institute for Applied Mathematics of the Italian National Research Council in  Genova, and from 1981 to 1982 an Assistant Professor at the Department of Mathematics of the University of Genova. From 1982 to 1990 she has been a senior scientist at the Institute of Applied Mathematics of the Italian National Research Council. She is leading  several national and EEC projects on algorithms and data structures for representing and manipulating geometric data. Leila De Floriani has written over 90 technical publications on the subjects of computational geometry, geometric modeling, algorithms and data structures for spatial data handling and graph theory. She is a member of the Editorial Board of the journals  "International Journal of Geographic Information Systems" and "Geoinformatica".
  • Paola Magillo is Tenured Researcher at the University of Genova since 1996. She received a Laurea degree in Computer Science at the University of Genova, Genova (Italy), in 1992, and a PhD in Computer Science, from the same university, in 1999. In 1993, she was research associate at the "Institut National de Recherche en Informatique et Automatique" (INRIA), Sophia Antipolis (France). Her research interests include computational geometry, geometric modeling, geographic information systems and computer graphics.

Recent pertinent publications

  • L. De Floriani, P. Magillo, E. Puppo, Compressing Triangulated Irregular Networks, Geoinformatica, N.4, Vol.1, 2000, pp. 67-88
  • L. De Floriani, P. Magillo, E. Puppo, Data Structures for Simplicial Multi-Complexes, in Advances in Spatial Databases, Guting, Papadias, Lochovsky (Editors), Lecture Notes in Computer Science, N.1651, pp.33-51, 1999
  • L. De Floriani, P. Magillo, E. Puppo, Multiresolution Representation of Shapes Based on Cell Complexes, in Discrete Geometry for Computer Imagery, Bertrand, Couprie, Perroton (Editors), Lecture Notes in Computer Science, N.1568, pp.3-18, 1999
  • L. De Floriani, G.G. Pieroni, V. Murino, E. Puppo, Virtual environment generation by CAD-based methodology for underwater navigation, in Proceedings IX European Signal Processing Conference, 1998, Rodhes (Greece), pp.1105-1108.
  • L. De Floriani, P. Magillo, E. Puppo, Managing the level of detail in 3D shape reconstruction and representation, in Proceedings 14th International Conference on Pattern Recognition (ICPR'98), Brisbane, Queensland Australia, August 16-20, 1998
  • E. Puppo, Variable resolution triangulations, in Computational Geometry Theory and Applications, 11(3,4), December 1998, pp. 219-238
  • L. De Floriani, P. Magillo, E. Puppo, Efficient implementation of Multi-Triangulations, in Proceedings IEEE Visualization '98, Research Triangle Park, NC, October 18-23, 1998.
  • L. De Floriani, E. Puppo, P. Magillo, A formal approach to multiresolution modeling, in Geometric Modeling: Theory and Practice, W. Strasser, R. Klein, R. Rau (Eds.), Springer-Verlag, 1997, pp.302-323.
  • L. De Floriani, P. Magillo, E. Puppo, Building and Traversing a Surface at Variable Resolution, in Proceedings IEEE Visualization '97, Phoenix, Arizona, October 19-24, 1997, pp. 103-110
  • L. De Floriani, P. Magillo, E. Puppo, Multiresolution representation and reconstruction of triangulated surfaces, in Advances in Visual Form Analysis, C. Arcelli, L. Cordella, G. Sanniti di Baja (Editors), World Scientific, Singapore, 1997, pp. 140-149
  • P. Cignoni, E. Puppo, R. Scopigno, Representation and Visualization of Terrain Surfaces at Variable Resolution, The Visual Computer, Vol.13, N.5, Springer International, July 1997
  • L. De Floriani, P. Marzano, E. Puppo, Multiresolution Models for Topographic Surface Description, The Visual Computer, Vol.12, N.7, Springer International, August 1996, pp.317-345
  • M. Bertolotto, E. Bruzzone, L. De Floriani, Geometric Modeling and Spatial Reasoning, in Artificial Vision: Image Description, Recognition and Comunication, Chapter 6, V. Cantoni, S. Levialdi, V. Roberto (Editors), Academic Press, 1996, pp. 107-134.
  • E. Puppo, Segmentation/Reconstruction of Range Images based on Piecewise-Linear Approximation, Image Analysis and Processing, C. Braccini, L. De Floriani, G. Vernazza (Editors), Lecture Notes in Computer Science, N.974, Springer-Verlag, 1995, pp.367-372


 Last Update:  May 17, 2001