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Titolo:
High-quality rendering of smooth isosurfaces
Autore:
LaMar, E; Hamann, B; Joy, KI;
Indirizzi:
Univ Calif Davis, CIPIC, Dept Comp Sci, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 C, Dept Comp Sci, Davis, CA 95616 USA
Titolo Testata:
JOURNAL OF VISUALIZATION AND COMPUTER ANIMATION
fascicolo: 2, volume: 10, anno: 1999,
pagine: 79 - 90
SICI:
1049-8907(199904/06)10:2<79:HROSI>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Keywords:
animation; approximation; trilinear splines; volume visualization; ray casting; isosurfaces; resampling; Catmuli-Rom splines; Hardy's multiquadric scheme;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Joy, KI Univ Calif Davis, CIPIC, Dept Comp Sci, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 Comp Sci, Davis, CA 95616 USA
Citazione:
E. LaMar et al., "High-quality rendering of smooth isosurfaces", J VIS COMP, 10(2), 1999, pp. 79-90

Abstract

Animation and visualization of rectilinear data require interpolation schemes for smooth image generation. Piecewise trilinear interpolation, the de facto standard for interpolating rectilinear data, usually leads to significant visual artifacts in the resulting imagery. These artifacts reduce the confidence in the resulting visualization and may even lead to false interpretations of the data. This paper is concerned with the generation of smooth isosurface image sequences, obtained by casting rays through the image plane and computing their intersections with an isosurface. We describe a novel solution to this problem: we replace trilinear interpolation by tricubicinterpolation, smoothing oat the artifacts in the images; and we simplify the ray-isosurface intersection calculations by rotating and resampling theoriginal rectilinear data in a second rectilinear grid-a grid with one family of grid planes parallel to the image plane. Our solution significantly reduces artifacts in individual images and leads to smooth animations. Copyright (C) 1999 John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 18:55:02