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MDCO to B-Rep conversion algorithm
(1995-07)
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Report de recerca.
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Spatial enumeration models are widely used in several fields. These models are approximate but the major disadvantage is the lack of concision. In order to avoid such verbosity, hierarchical encodings such as octrees have ...
Classification of a point with respect to a polyhedron vertex
(1990)
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Report de recerca.
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Visualization of large-scale urban models through multi-level relief impostors
(North Holland, 2010-12)
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Article.
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In this paper, we present an efficient approach for the interactive rendering of large-scale urban models, which can be integrated seamlessly with virtual globe applications. Our scheme fills the gap between standard ...
A topological comparison of surface extraction algorithms
(2021-10-22)
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Report de recerca.
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In many application areas, it is useful to convert the discrete information stored in the nodes of a regular grid into a continuous boundary model. Isosurface extraction algorithms differ on how the discrete information ...
Automatic generation of multiresolution boundary representations
(1996-01)
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Report de recerca.
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The paper focuses on automatic simplification algorithms for the
generation of a multiresolution family of solid models from an initial
boundary representation of a polyhedral solid. An algorithm for
general polyhedra ...
Analysis of methods for generating octree models of objects from their silhouettes
(1996-09-10)
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Report de recerca.
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Reconstructing 3D models from their projection images has been an
interesting research topic in computer vision and geometric modeling.
In this paper, we review methods that generate octree models of
objects ...
A Geometric relaxation solver for parametric constraint-based models
(1998-06)
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Report de recerca.
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In this paper, a new relaxation algorithm for solving geometric
constraint-based models is proposed. The algorithm starts from a
constructive symbolic representation of objects (Constructive
...
Sistema avanzado de CAD Distribuido: integracion final del software
(1999-01-13)
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Report de recerca.
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El presente documento es un resumen de los resultados obtenidos en el marco del proyecto TIC95-0630. Proyecto conjunto entre la Universitat Politecnica de Catalunya y la Universidad de Girona. La integracion de los ...
A scalable approach to T2-MRI colon segmentation
(2020-07-01)
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Article.
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The study of the colonic volume is a procedure with strong relevance to gastroenterologists. Depending on the clinical protocols, the volume analysis has to be performed on MRI of the unprepared colon without contrast ...
Hoops: 3D curves as conservative occluders for cell visibility
(North Holland, 2001-08)
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Article.
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Most visibility culling algorithms require convexity of occluders. Occluder synthesis algorithms attempt to construct large convex occluders inside bulky non-convex sets. Occluder fusion algorithms generate convex occluders ...