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PRESERVACION AUTOMATICA DE DISCONTINUIDADES DE SUPERFICIE BASADA EN LA ESTIMACION DE LA TORSION DE CURVAS DE CONTORNO PARA LA RECONSTRUCCION DE OBJETOS TRIDIMENSIONALES/AUTOMATIC PRESERVATION OF SURFACE DISCONTINUITIES BASED ON TORSION ESTIMATION OF THE CONTOUR CURVES FOR THE RECONSTRUCTION OF THREE-DIMENSIONAL OBJECTS

Torres, Germán Sánchez ; Branch, John William

Ingeniare : Revista Chilena de Ingenieria, 2009-05, Vol.17 (2), p.244 [Periódico revisado por pares]

Arica: Universidad de Tarapacá

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Título:
PRESERVACION AUTOMATICA DE DISCONTINUIDADES DE SUPERFICIE BASADA EN LA ESTIMACION DE LA TORSION DE CURVAS DE CONTORNO PARA LA RECONSTRUCCION DE OBJETOS TRIDIMENSIONALES/AUTOMATIC PRESERVATION OF SURFACE DISCONTINUITIES BASED ON TORSION ESTIMATION OF THE CONTOUR CURVES FOR THE RECONSTRUCTION OF THREE-DIMENSIONAL OBJECTS
Autor: Torres, Germán Sánchez ; Branch, John William
Assuntos: Data analysis ; Digital imaging ; Estimating techniques ; Mechanical engineering ; Research methodology
É parte de: Ingeniare : Revista Chilena de Ingenieria, 2009-05, Vol.17 (2), p.244
Descrição: Different methods for fitting surfaces from dispersed data interpolation assume the reconstructed surface does not have any type of discontinuity. Discontinuities in the surfaces are obtained from the original shape of the object and they appear mainly in the acquisition process due to occlusion problems. For digital representation of surfaces with discontinuities is commonly found an additional manual process, which is applied after the final stage of fitting surface. In this paper, two methods are proposed, one of them with the aim of detecting and presenting discontinuities in surfaces with arbitrary topology, and the other one to reduce the amount of points to be interpolated, decreasing the computational cost. Initially, the method carries out a classification based on estimation of the torsion variance of the contour cu ire. When the holes contour has very low values of variances, it is considered that this hole must be preserved. Then, the surface described by the selected set of points is interpolated using Radial Basis Functions. Finally, the generated surface is trimmed with each contour identified like preservable. [PUBLICATION ABSTRACT]
Editor: Arica: Universidad de Tarapacá
Idioma: Espanhol

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Torres, Germán Sánchez ; Branch, John William

Arica: Universidad de Tarapacá

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