25 Semantic Annotation of Digital 3D Objects (2009)
Marco Attene, Francesco Robbiano, Michela Mortara, Michela Spagnuolo, Bianca Falcidieno
Abstract—In this demo we show two new techniques for performing semantic annotation of 3D digital objects. The first tool, the ShapeAnnotator, is more general-purpose, and concerns a system to...
POUR L’OBTENTION DU GRADE DE DOCTEUR ÈS SCIENCES (2009)
École Polytechnique, Fédérale De Lausanne, Prof Dr, Daniel Thalmann, Prof Dr, ...
ii The main problem targeted by this research is the lack of flexibility of virtual objects within a Virtual Environment. Virtual objects are difficult to re-use in applications or contexts different...
Mapping independent triangulation of parametric surfaces (2008)
Marco Attene, Bianca Falcidieno, Michela Spagnuolo
Typical methods for the triangulation of parametric surfaces use a sampling of the parameter space, and the wrong choice of parameterization can spoil a triangulation or even cause the algorithm to...
L. Kobbelt, P. Schröeder, Marco Attene, Bianca Falcidieno, Jarek Rossignac, Michela Spagnuolo
3D scanners, iso-surface extraction procedures, and several recent geometric compression schemes sample surfaces of 3D shapes in a regular fashion, without any attempt to align the samples with the...
Introducing Sweep features in Modeling with Subdivision Surfaces (2008)
Chiara E. Catalano, Via De Marini, Franca Giannini, Bianca Falcidieno
In recent times, subdivision surfaces have been considered a powerful representation for shape design. They have been successfully introduced in character animation software packages. In the last few...
Semantic Annotation of 3D Surface Meshes based on Feature Characterization (2008)
Marco Attene, Francesco Robbiano, Michela Spagnuolo, Bianca Falcidieno
Abstract. In this paper we describe the main aspects of a system to perform non-trivial segmentations of 3D surface meshes and to annotate the detected parts through concepts expressed by an...
Geometry and Object Modeling – geometric algorithms; (2007)
Marco Attene, Bianca Falcidieno, Jarek Rossignac, Michela Spagnuolo
3D scanners, iso-surface extraction procedures, and several recent geometric compression schemes sample surfaces of 3D shapes in a regular fashion, without any attempt to align the samples with the...
Marco Attene, Bianca Falcidieno, Michela Spagnuolo, Geoff Wyvill
mapping-independent primitive for the
Marco Attene, Bianca Falcidieno, Michela Spagnuolo, Jarek Rossignac
Figure 1: The original model (on the left, courtesy of Cyberware) containing 134,074 triangles requires 4,100,000 bytes, when stored as a WRL file. A dense partitioning of its surface into deformed...
Remesh: An interactive environment to edit and repair triangle meshes (2006)
Marco Attene, Bianca Falcidieno
Polygonal meshes obtained from acquisition of real-world objects may easily exhibit topological or geometrical defects, which often prevent subsequent processing and analysis to provide satisfactory...
M.: Hierarchical mesh segmentation based on fitting primitives (2006)
Marco Attene, Bianca Falcidieno, Michela Spagnuolo
In this paper we describe a hierarchical face clustering algorithm for triangle meshes based on fitting primitives belonging to an arbitrary set. The method proposed is completely automatic, and...
Partial matching by structural descriptors (2006)
Simone Marini, Silvia Biasotti, Bianca Falcidieno
Abstract. The extended abstract describes a method for recognizing similar sub-parts of objects described by 3D polygonal meshes. The innovation of this method is the coupling of structure and...
Structural descriptors for 3d shapes (2006)
Michela Spagnuolo, Silvia Biasotti, Bianca Falcidieno, Simone Marini
Assessing the similarity among 3D shapes is a challenging research topic, and effective shape descriptions have to be devised in order to support the matching process. There is a growing consensus...
Structural Descriptors for 3D Shapes (2006)
Spagnuolo, Michela, Biasotti, Silvia, Falcidieno, Bianca, Marini, Simone
Assessing the similarity among 3D shapes is a very complex and challenging research topic. While human perception have been widely studied and produced theories that received a large consensus, the...
Acquiring, structuring shapes and annotating them with semantics to improve design activities (2005)
Jean-claude Leon, Franca Giannini, Bianca Falcidieno, Gino Brunetti, Holger Graf, André Stork, ...
Abstract: Shapes incorporate geometry as well as semantics and can be defined in 2D, 3D or higher dimensions. Geometric models can be structured in such a way that they can provide a relevant...
Surface from Scattered Points: A Brief Survey of Recent Developments (2005)
Schall, Oliver, Samozino, Marie, Falcidieno, Bianca, Magnenat-Thalmann, Nadia
The paper delivers a brief overview of recent developments in the field of surface reconstruction from scattered point data. The focus is on computational geometry methods, implicit surface...
Clustering for Surface Reconstruction (2005)
Isgro, Francesco, Odone, Francesca, Saleem, Waqar, Schall, Oliver, Falcidieno, Bianca, Magnenat-Thalmann, Nadia
We consider applications of clustering techniques, Mean Shift and Self-Organizing Maps, to surface reconstruction (meshing) from scattered point data and review a novel kernel-based clustering method.
Inserting G1 discontinuities into free-form features for aesthetic design (2004)
Vincent CHEUTET, Jean-Philippe PERNOT, Jean-claude Leon, Bianca Falcidieno, Franca Giannini
Free form shapes are often used to fulfil both aesthetic and design constraints applied to parametric models currently adopted in CAD environments. Up to now, designers and engineers have mainly...
Animatable Human Body Model Reconstruction from 3D Scan Data Using Templates (2004)
Laurent Moccozet, Fabien Dellas, Nadia Magnenat-thalmann, Silvia Biasotti, Michela Mortara, Bianca Falcidieno, ...
Many detailed 3D datasets of human bodies are available, and with current scanning technology, new ones are relatively easy to produce. As a result, more realistic looking animations become possible,...
Marco Attene, Bianca Falcidieno, Jarek Rossignac, Michela Spagnuolo
D scanners, iso-surface extraction procedures, and several recent geometric compression schemes sample surfaces of 3D shapes in a regular fashion, without any attempt to align the samples with the...
SwingWrapper: Retiling Triangle Meshes for Better EdgeBreaker Compression (2001)
Marco Attene, Bianca Falcidieno, Michela Spagnuolo, Jarek Rossignac
We focus on the lossy compression of manifold triangle meshes. Our SwingWrapper approach partitions the surface of an original mesh M into simply connected regions, called triangloids. From these, we...