2001
Conference article
Unknown
Collision handling for virtual environments
Dingliana J., Ganovelli F., Bradshaw G., Òsullivan C. A.
An abstract is not available.Source: Eurographics, 2001
Dingliana J., Ganovelli F., Bradshaw G., Òsullivan C. A.
An abstract is not available.Source: Eurographics, 2001
See at: CNR ExploRA
2006
Software
Unknown
TexAlign
Ganovelli M., Dellepiane M.
Il pacchetto software permette di allineare un set di fotografie digitali ad un modello 3D stimando opportunamente i parametri della camera.
Ganovelli M., Dellepiane M.
Il pacchetto software permette di allineare un set di fotografie digitali ad un modello 3D stimando opportunamente i parametri della camera.
See at: CNR ExploRA
2006
Software
Unknown
ArchiMesh
Ganovelli F., Spinelli A.
Il pacchetto software permette di estrarre da un modello digitale 3D ottenuto con tecnologia 3D scanning informazioni sulle features presenti (spigoli, primitive, etc.).
Ganovelli F., Spinelli A.
Il pacchetto software permette di estrarre da un modello digitale 3D ottenuto con tecnologia 3D scanning informazioni sulle features presenti (spigoli, primitive, etc.).
See at: CNR ExploRA
2004
Other
Unknown
VCG Lib: Visualization and Computer Graphics Library
Cignoni P., Ganovelli F., Pietroni N., Ranzuglia G., Ponchio F., Tarini M., Corsini M., Callieri M., Scopigno R.
Not available.
Cignoni P., Ganovelli F., Pietroni N., Ranzuglia G., Ponchio F., Tarini M., Corsini M., Callieri M., Scopigno R.
Not available.
See at: CNR ExploRA
2014
Conference article
Unknown
Adaptive clipping of splats to models with sharp features
Ivo R., Ganovelli F., Vidal C., Scopigno R.
Splat-based models are a good representation because of its absense of topology, making complex modeling operations easier, but keeping the same approximation ratio from triangular meshesSource: STAG 2014:Smart Tools and Apps for Graphics, Cagliari, Italy, 22-23 September 2014
Ivo R., Ganovelli F., Vidal C., Scopigno R.
Splat-based models are a good representation because of its absense of topology, making complex modeling operations easier, but keeping the same approximation ratio from triangular meshesSource: STAG 2014:Smart Tools and Apps for Graphics, Cagliari, Italy, 22-23 September 2014
See at: CNR ExploRA
2008
Software
Unknown
BlockMap Engine
Di Benedetto M., Cignoni P., Fabio Ganovelli F., Scopigno R.
BlockMaps engine is a multiplatform opensource application for real time rendering of massive urban dataset. It is entirely written in c++ with Qt and OpenGl library. The BlockMaps engine has been deployed in the framework of the CRIMSON project (CRIMSON: The Crisis Simulation System EU Fifth Framework Program Reference: SEC4-PR-011500)
Di Benedetto M., Cignoni P., Fabio Ganovelli F., Scopigno R.
BlockMaps engine is a multiplatform opensource application for real time rendering of massive urban dataset. It is entirely written in c++ with Qt and OpenGl library. The BlockMaps engine has been deployed in the framework of the CRIMSON project (CRIMSON: The Crisis Simulation System EU Fifth Framework Program Reference: SEC4-PR-011500)
See at: CNR ExploRA
2003
Journal article
Unknown
Fast tetrahedron-tetrahedron overlap algorithm
Ganovelli F., Ponchio F., Rocchini C.
We present an algorithm to test two tetrahedra for overlap. The algorithm is based on a dimension reduction technique that allows to apply the Separating Axis Theorem avoiding part of the computation needed to perform the Separating Axis Test. Source code is available online.Source: ACM transactions on intelligent systems and technology (Print) 7 (2003): 17–26.
Ganovelli F., Ponchio F., Rocchini C.
We present an algorithm to test two tetrahedra for overlap. The algorithm is based on a dimension reduction technique that allows to apply the Separating Axis Theorem avoiding part of the computation needed to perform the Separating Axis Test. Source code is available online.Source: ACM transactions on intelligent systems and technology (Print) 7 (2003): 17–26.
See at: CNR ExploRA
2007
Software
Unknown
IDOLib: Interactive Deformable Objects Library
Ganovelli F., Turini G., Pietroni N.
IDOLib è una libreria scritta in C++ per lo sviluppo di software di modellazione di oggetti deformabili. La libreria offre gli strumenti di base per sviluppare metodi per la modellazione di oggetti deformabili: definizioni geometriche ed operazioni di algebra lineare, metodi di integrazione numerica di equazioni differenziali parziali
Ganovelli F., Turini G., Pietroni N.
IDOLib è una libreria scritta in C++ per lo sviluppo di software di modellazione di oggetti deformabili. La libreria offre gli strumenti di base per sviluppare metodi per la modellazione di oggetti deformabili: definizioni geometriche ed operazioni di algebra lineare, metodi di integrazione numerica di equazioni differenziali parziali
See at: CNR ExploRA
2019
Report
Open Access
SOROS: Sciadro online reconstruction by odometry and stereo-matching
Ganovelli F., Malomo L., Scopigno R.
In this report we show how to interactively create 3D models for scenes seen by a common off-the-shelf smartphone. Our approach combines Visual Odometry with IMU sensors in order to achieve interactive 3D reconstruction of the scene as seen from the camera.Source: ISTI Technical reports, 2019
Ganovelli F., Malomo L., Scopigno R.
In this report we show how to interactively create 3D models for scenes seen by a common off-the-shelf smartphone. Our approach combines Visual Odometry with IMU sensors in order to achieve interactive 3D reconstruction of the scene as seen from the camera.Source: ISTI Technical reports, 2019
See at:
ISTI Repository 
| CNR ExploRA
2006
Software
Unknown
Visual Computing Library
Paolo Cignoni, Fabio Ganovelli
La VCG Library, è una C++ templated library, portabile, altamente efficiente per la gestione di mesh poligonali, in particolare triangolari, che e' stata progettata e sviluppata all'interno del Visual Computing Lab; nel corso degli ultimi 5/6 negli anni e' stata attivamente mantenuta ed espansa, riuscendo ad integrare al suo interno buona parte dei risultati scientifici ottenuti dal laboratorio di visual computing. Dall'inizio del 2004 la libreria, composta ormai da varie centinaia di file e più di 65mila linee di codice, è stata sottoposta ad una completa riscrittura ed e stata posta in Open Source sotto licenza GPL.
Paolo Cignoni, Fabio Ganovelli
La VCG Library, è una C++ templated library, portabile, altamente efficiente per la gestione di mesh poligonali, in particolare triangolari, che e' stata progettata e sviluppata all'interno del Visual Computing Lab; nel corso degli ultimi 5/6 negli anni e' stata attivamente mantenuta ed espansa, riuscendo ad integrare al suo interno buona parte dei risultati scientifici ottenuti dal laboratorio di visual computing. Dall'inizio del 2004 la libreria, composta ormai da varie centinaia di file e più di 65mila linee di codice, è stata sottoposta ad una completa riscrittura ed e stata posta in Open Source sotto licenza GPL.
See at: CNR ExploRA | vcg.sourceforge.net
2003
Report
Open Access
Visualization and 3D data processing in David's restoration
Callieri M., Cignoni P., Ganovelli F., Impoco G., Montani C., Pingi P., Ponchio F., Scopigno R.
The David restoration project (started in Florence in 2002) has given several guidelines to the definition and development of innovative solutions to process and visualize 3D data in the framework of Cultural Heritage (CH) applications. Our main goal has been to demonstrate the usefulness of digital 3D models and of visualization tools in the framework of a restoration project.Source: ISTI Technical reports, 2003
Callieri M., Cignoni P., Ganovelli F., Impoco G., Montani C., Pingi P., Ponchio F., Scopigno R.
The David restoration project (started in Florence in 2002) has given several guidelines to the definition and development of innovative solutions to process and visualize 3D data in the framework of Cultural Heritage (CH) applications. Our main goal has been to demonstrate the usefulness of digital 3D models and of visualization tools in the framework of a restoration project.Source: ISTI Technical reports, 2003
See at:
ISTI Repository | CNR ExploRA
2009
Report
Open Access
Curvature from sliding
Ganovelli F., Cignoni P., Scopigno R.
We introduce a novel interpretation of the curvature over discrete surfaces that allows to compute a multi scale measure of principal directions and values of curvature and which is robust with regards to tessellation degeneracies and geometric and topological noise. The key observation is that there is a direct relation between the way a portion of surface can rotationally slide over a surface and the directions of principal curvature. We exploit such relation to setup a optimization problem that we use to actually compute the curvature values in a novel way.Source: ISTI Technical reports, 2009
Ganovelli F., Cignoni P., Scopigno R.
We introduce a novel interpretation of the curvature over discrete surfaces that allows to compute a multi scale measure of principal directions and values of curvature and which is robust with regards to tessellation degeneracies and geometric and topological noise. The key observation is that there is a direct relation between the way a portion of surface can rotationally slide over a surface and the directions of principal curvature. We exploit such relation to setup a optimization problem that we use to actually compute the curvature values in a novel way.Source: ISTI Technical reports, 2009
See at:
ISTI Repository | CNR ExploRA
2012
Journal article
Open Access
OCME: out-of-core Mesh Editing Made Practical
Ganovelli F., Scopigno R.
OCME (Out-of-Core Mesh Editing) comprises a novel data structure and related algorithms for out-of-core editing of large meshes. Triangles are inserted in a multigrid on the basis of their size in average constant time. OCME maintains no explicit hierarchy, so inserting, modifying, or deleting data doesn't require costly refitting.Source: IEEE computer graphics and applications 32 (2012): 46–58. doi:10.1109/MCG.2011.49
DOI: 10.1109/mcg.2011.49
Project(s): 3D-COFORM
Metrics:
Ganovelli F., Scopigno R.
OCME (Out-of-Core Mesh Editing) comprises a novel data structure and related algorithms for out-of-core editing of large meshes. Triangles are inserted in a multigrid on the basis of their size in average constant time. OCME maintains no explicit hierarchy, so inserting, modifying, or deleting data doesn't require costly refitting.Source: IEEE computer graphics and applications 32 (2012): 46–58. doi:10.1109/MCG.2011.49
DOI: 10.1109/mcg.2011.49
Project(s): 3D-COFORM
Metrics:
See at:
IEEE Computer Graphics and Applications | IEEE Computer Graphics and Applications 
| ieeexplore.ieee.org | CNR ExploRA
2004
Software
Unknown
Visual computing library - Release 1.0 , 1 January 2004
Cignoni P., Ganovelli F., Ponchio F., Pietroni N., Corsini M., Ranzuglia G., Di Benedetto M., Tarini M., Dellepiane M.
The VCG library is a portable C++ templated library for manipulation, processing and displaying with OpenGL polygon meshes. The library, released under the GPL license is the result of the collaborative efforts of the Visual Computing Lab ( VCGLab ) of the ISTI - institute of the Italian National Research Council.
Cignoni P., Ganovelli F., Ponchio F., Pietroni N., Corsini M., Ranzuglia G., Di Benedetto M., Tarini M., Dellepiane M.
The VCG library is a portable C++ templated library for manipulation, processing and displaying with OpenGL polygon meshes. The library, released under the GPL license is the result of the collaborative efforts of the Visual Computing Lab ( VCGLab ) of the ISTI - institute of the Italian National Research Council.
See at: CNR ExploRA
2001
Journal article
Restricted
Enabling cuts on multiresolution representation
Ganovelli F., Cignoni P., Montani C., Scopigno R.
Multiresolution representations are widely used in many visualization contexts and applications, since they provide optimal management of the data representation by using at each time instant a level of detail most appropriate for the application requirements. Unfortunately, current solutions do not allow the topology of the object to be changed, and this tends to prevent its adoption in applications where topological changes are needed, such as virtual surgery applications. By extending a known multiresolution model based on simplicial complexes, we develop a new approach which supports dynamic topological modifications of the represented object without greatly increasing the representation complexity.Source: The visual computer 17 (2001): 274–286. doi:10.1007/s003710100098
DOI: 10.1007/s003710100098
DOI: 10.1109/cgi.2000.852333
Metrics:
Ganovelli F., Cignoni P., Montani C., Scopigno R.
Multiresolution representations are widely used in many visualization contexts and applications, since they provide optimal management of the data representation by using at each time instant a level of detail most appropriate for the application requirements. Unfortunately, current solutions do not allow the topology of the object to be changed, and this tends to prevent its adoption in applications where topological changes are needed, such as virtual surgery applications. By extending a known multiresolution model based on simplicial complexes, we develop a new approach which supports dynamic topological modifications of the represented object without greatly increasing the representation complexity.Source: The visual computer 17 (2001): 274–286. doi:10.1007/s003710100098
DOI: 10.1007/s003710100098
DOI: 10.1109/cgi.2000.852333
Metrics:
See at:
The Visual Computer | doi.org | link.springer.com | www.scopus.com | CNR ExploRA
2003
Journal article
Unknown
A machine vision system controlling the cutting of animal hide
Fantini E., Ganovelli F., Pingi P.
Based on the integration of image acquisition techniques and real-time systems, an innovative system for cutting raw hides has been developed at ISTI-CNR. The aim is to partly automate the cutting process, so that minimal human intervention is needed. The current procedure for cutting animal hide is completely manual. The hide is spread out on a bench and expert operators decide the best cutting lines on the basis of the location of specific features. The hide is then manually cut using ad hoc knives and the parts are removed from the bench. The work of cutting the hide is the most time consuming step, and requires three or four workers.Source: ERCIM news 55 (2003): 32–33.
Fantini E., Ganovelli F., Pingi P.
Based on the integration of image acquisition techniques and real-time systems, an innovative system for cutting raw hides has been developed at ISTI-CNR. The aim is to partly automate the cutting process, so that minimal human intervention is needed. The current procedure for cutting animal hide is completely manual. The hide is spread out on a bench and expert operators decide the best cutting lines on the basis of the location of specific features. The hide is then manually cut using ad hoc knives and the parts are removed from the bench. The work of cutting the hide is the most time consuming step, and requires three or four workers.Source: ERCIM news 55 (2003): 32–33.
See at: CNR ExploRA
2003
Conference article
Unknown
Batching meshes for high performance terrain visualization
Cignoni P., Ganovelli F., Gobbetti E., Marton F., Ponchio F., Scopigno R.
This paper describes an efficient technique for out-of-core rendering and management of large textured terrain surfaces. The technique, called Batched Dynamic Adaptive Meshes (BDAM) , is based on a paired tree structure: a tiled quadtree for texture data and a pair of bintrees of small triangular patches for the geometry. These small patches are TINs and are constructed and optimized off-line with high quality simplification and tristripping algorithms. Hierarchical view frustum culling and view-dependent texture and geometry refinement is performed at each frame through a stateless traversal algorithm. datasets.Source: Second Annual Conference of Eurographics - Italian Chapter, Milano, 25-26 settembre 2003
Cignoni P., Ganovelli F., Gobbetti E., Marton F., Ponchio F., Scopigno R.
This paper describes an efficient technique for out-of-core rendering and management of large textured terrain surfaces. The technique, called Batched Dynamic Adaptive Meshes (BDAM) , is based on a paired tree structure: a tiled quadtree for texture data and a pair of bintrees of small triangular patches for the geometry. These small patches are TINs and are constructed and optimized off-line with high quality simplification and tristripping algorithms. Hierarchical view frustum culling and view-dependent texture and geometry refinement is performed at each frame through a stateless traversal algorithm. datasets.Source: Second Annual Conference of Eurographics - Italian Chapter, Milano, 25-26 settembre 2003
See at: CNR ExploRA
2001
Conference article
Unknown
Animating cuts with on-the-fly re-meshing
Ganovelli F., Òsullivan C.
The problem of defining a model for deformable objects which allows the user to perform cuts is still open. Generally speaking, the reason is that such a task affects the connectivity and the topology of the mesh, while the assumption that they never change is the basis of most algorithms for both computation of deformation and collision detection. The drawback of approaching this problem as one of cutting based on re-meshing, is that the mesh exhibits a higher density where it has been cut than elsewhere. This paper proposes an on-the-fly tetrahedral simplification scheme to cope with such a fragmentation problem.Source: The European Association for Computer Graphics - 22nd Annual Conference EUROGRAPHICS, pp. 243–247, Manchester (UK), 4-7/09/2001
Ganovelli F., Òsullivan C.
The problem of defining a model for deformable objects which allows the user to perform cuts is still open. Generally speaking, the reason is that such a task affects the connectivity and the topology of the mesh, while the assumption that they never change is the basis of most algorithms for both computation of deformation and collision detection. The drawback of approaching this problem as one of cutting based on re-meshing, is that the mesh exhibits a higher density where it has been cut than elsewhere. This paper proposes an on-the-fly tetrahedral simplification scheme to cope with such a fragmentation problem.Source: The European Association for Computer Graphics - 22nd Annual Conference EUROGRAPHICS, pp. 243–247, Manchester (UK), 4-7/09/2001
See at: CNR ExploRA
2007
Conference article
Restricted
A robust method for real-time thread simulation
Kubiak B., Pietroni N., Ganovelli F., Fratarcangeli M.
We present a physically based model for real-time simulation of thread dynamics. Our model captures all the relevant aspects of the physics of the thread, including quasi-zero elasticit, bending, torsion and self-collision, and it provides output forces for the haptic feedback. The physical properties are modeled in terms of constraints that are iteratively satisfied while the numerical integration is carried out through a Verlet scheme. This approach leads to an unconditionally stable, controllable and computationally light simulation. Our results demonstrate the effectiveness of our model, showing the interaction of the thread with other objects in real time and the creation of complex knots.Source: ACM Symposium on Virtual Reality Software and Technology 2007. VRST 2007, Newport Beach, California, US, 5-7-/11/2007
Kubiak B., Pietroni N., Ganovelli F., Fratarcangeli M.
We present a physically based model for real-time simulation of thread dynamics. Our model captures all the relevant aspects of the physics of the thread, including quasi-zero elasticit, bending, torsion and self-collision, and it provides output forces for the haptic feedback. The physical properties are modeled in terms of constraints that are iteratively satisfied while the numerical integration is carried out through a Verlet scheme. This approach leads to an unconditionally stable, controllable and computationally light simulation. Our results demonstrate the effectiveness of our model, showing the interaction of the thread with other objects in real time and the creation of complex knots.Source: ACM Symposium on Virtual Reality Software and Technology 2007. VRST 2007, Newport Beach, California, US, 5-7-/11/2007
See at:
dl.acm.org | CNR ExploRA
2008
Conference article
Restricted
MeshLab: an open-source mesh processing tool
Cignoni P., Callieri M., Corsini M., Dellepiane M., Ganovelli F., Ranzuglia G.
The paper presents MeshLab, an open source, extensible, mesh processing system that has been developed at the Visual Computing Lab of the ISTI-CNR with the helps of tens of students. We will describe the MeshLab architecture, its main features and design objectives discussing what strategies have been used to support its development. Various examples of the practical uses of MeshLab in research and professional frameworks are reported to show the various capabilities of the presented system.Source: Eurographics Italian Chapter Conference, pp. 129–136, Salerno, Italy, 2-4 July 2008
DOI: 10.2312/localchapterevents/italchap/italianchapconf2008/129-136
Metrics:
Cignoni P., Callieri M., Corsini M., Dellepiane M., Ganovelli F., Ranzuglia G.
The paper presents MeshLab, an open source, extensible, mesh processing system that has been developed at the Visual Computing Lab of the ISTI-CNR with the helps of tens of students. We will describe the MeshLab architecture, its main features and design objectives discussing what strategies have been used to support its development. Various examples of the practical uses of MeshLab in research and professional frameworks are reported to show the various capabilities of the presented system.Source: Eurographics Italian Chapter Conference, pp. 129–136, Salerno, Italy, 2-4 July 2008
DOI: 10.2312/localchapterevents/italchap/italianchapconf2008/129-136
Metrics:
See at:
diglib.eg.org | CNR ExploRA