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- Paolo Cignoni, Paola Marino, Claudio Montani, Enrico Puppo, Roberto Scopigno
- IEEE Trans. Vis. Comput. Graph.
- 1997

The interval tree is an optimally efficient search structure proposed by Edelsbrunner [5] to retrieve intervals on the real line that contain a given query value. We propose the application of such a data structure to the fast location of cells intersected by an isosurface in a volume dataset. The resulting search method can be applied to both structured… (More)

- Paolo Cignoni, Claudio Montani, Claudio Rocchini, Roberto Scopigno
- IEEE Trans. Vis. Comput. Graph.
- 2003

Very large triangle meshes, i.e. meshes composed of millions of faces, are becoming common in many applications. Obviously, processing, rendering, transmission and archival of these meshes are not simple tasks. Mesh simplification and LOD management are a rather mature technology that in many cases can efficiently manage complex data. But only few available… (More)

- Marco Tarini, Kai Hormann, Paolo Cignoni, Claudio Montani
- ACM Trans. Graph.
- 2004

Standard texture mapping of real-world meshes suffers from the presence of seams that need to be introduced in order to avoid excessive distortions and to make the topology of the mesh compatible to the one of the texture domain. In contrast, cube maps provide a mechanism that could be used for seamless texture mapping with low distortion, but only if the… (More)

- Paolo Cignoni, Claudio Montani, Roberto Scopigno
- Computers & Graphics
- 1998

In many applications the need for an accurate simplification of surface meshes is becoming more and more urgent. This need is not only due to rendering speed reasons, but also to allow fast transmission of 3D models in network-based applications. Many different approaches and algorithms for mesh simplification have been proposed in the last few years. We… (More)

- Claudio Montani, Riccardo Scateni, Roberto Scopigno
- IEEE Visualization
- 1994

Since the introduction of standard techniques for isosurface extraction from volumetric datasets, one of the hardest problems has been to reduce the number of triangles (or polygons) generated.This paper presents an algorithm that considerably reduces the number of polygons generated by a Marching Cubes-like scheme without excessively increasing the overall… (More)

- Paolo Cignoni, D. Constanza, Claudio Montani, Claudio Rocchini, Roberto Scopigno
- IEEE Visualization
- 2000

The techniques for reducing the size of a volume dataset by preserving both the geometrical/topological shape and the information encoded in an attached scalar field are attracting growing interest. Given the framework of incremental 3D mesh simplification based on edge collapse, the paper proposes an approach for the integrated evaluation of the error… (More)

- Marco Tarini, Paolo Cignoni, Claudio Montani
- IEEE Transactions on Visualization and Computer…
- 2006

The paper presents a set of combined techniques to enhance the real-time visualization of simple or complex molecules (up to order of 10<sup>6</sup> atoms) space fill mode. The proposed approach includes an innovative technique for efficient computation and storage of ambient occlusion terms, a small set of GPU accelerated procedural impostors for… (More)

- Claudio Rocchini, Paolo Cignoni, Claudio Montani, Roberto Scopigno
- Rendering Techniques
- 1999

In this paper we propose a new approach for mapping and blending textures on 3D geometries. The system starts from a 3D mesh which represents a real object and improves this model with pictorial detail. Texture detail is acquired via a common photographic process directly from the real object. These images are then registered and stitched on the 3D mesh, by… (More)

- Claudio Rocchini, Paolo Cignoni, Fabio Ganovelli, Claudio Montani, Paolo Pingi, Roberto Scopigno
- The Visual Computer
- 2003

A new algorithm for the integration of partially overlapping range images into a triangular mesh is presented. The algorithm consists of three main steps: it locates the intersections between the range surfaces and a reference grid chosen by the user, then merges all nearly coincident and redundant intersections according to a proximity criterion, and,… (More)

- Marco Tarini, Paolo Cignoni, Claudio Montani
- IEEE transactions on visualization and computer…
- 2006

The paper presents a set of combined techniques to enhance the real-time visualization of simple or complex molecules (up to order of 106 atoms) space fill mode. The proposed approach includes an innovative technique for efficient computation and storage of ambient occlusion terms, a small set of GPU accelerated procedural impostors for space-fill and… (More)