Title: Visualization of anatomical structures based on implicit surfaces and displacement mapping
Authors: del Río, A.
Amor, M.
Bóo, M.
Pardó, X. M.
Citation: WSCG '2004: Posters: The 12-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, 2.-6. February 2004, Plzen, p. 45-48.
Issue Date: 2004
Publisher: UNION Agency
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/wscg2004/Papers_2004_Poster/L89.pdf
ISBN: 80-903100-6-0
Keywords: implicitní povrchy;posun mapování;Fourierova transformace;lékařská vizualizace
Keywords in different language: implicit surfaces;displacement mapping;Fourier transform;medical visualization
Abstract: Implicit models provide an accurate and flexible representation of a surface. Although they have been widely used in modeling contexts, their application to visualization has been relatively limited due to rendering difficulties. Typical explicit triangulation of the surface, though effective, results in a redundant representation and a high load on the bus between the CPU and the graphics pipeline. In this work, we present an alternative method that allows high quality visualization of iso-surfaces with lower communication requirements. Our proposal is based on the combination of implicit surfaces with displacement mapping techniques. The application of displacement maps on a coarse mesh approximating the implicit model avoids the necessity of explicit triangulation and reduces the bus load without loss of image quality. The examination of the iso-surface contour, by means of a frequency analysis, allows for automatic creation of the displacement map which better suits to the implicit model in question. In this study we demonstrate the validity of the proposal as an efficient alternative to polygonization of implicit surfaces, thus opening many new possibilities to its application to volume visualization.
Rights: © UNION Agency
Appears in Collections:WSCG '2004: Posters

Files in This Item:
File Description SizeFormat 
L89.pdf169,93 kBAdobe PDFView/Open

Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/935

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.