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Title: Analytic rendering of curvilinear volume data

Abstract

A technique is presented for analytically rendering volume data from curvilinear grids. The method employs analytic techniques for manipulating and rendering curvilinear voxels. A curvilinear voxel is represented using a cubic triparametric solid formulation. The control points defining the cubic triparametric voxel are computed from the original curvilinear grid using the Catmull-Rom formulation, and subsequently rendered using a three-dimensional forward difference operator. The primary benefit from using such a representation is the fact the voxel shape and data values are C1-continuous across voxel boundaries. The issue of voxel opacity, both at the sub-voxel and super-voxel levels, is investigated. The use of both tricubic representation and rendering, along with the new approach to managing voxel opacity, results in images which are markedly different from those presented in previous work.

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10112506
Report Number(s):
LBL-33808
ON: DE94004934; TRN: 94:000630
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Mar 1993
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; CURVILINEAR COORDINATES; SPLINE FUNCTIONS; COMPUTER GRAPHICS; ALGORITHMS; IMAGES; VOLUME; DATA PROCESSING; FLUID MECHANICS; SURFACES; 990200; 990301; MATHEMATICS AND COMPUTERS; DATA HANDLING

Citation Formats

Bethel, W. Analytic rendering of curvilinear volume data. United States: N. p., 1993. Web. doi:10.2172/10112506.
Bethel, W. Analytic rendering of curvilinear volume data. United States. https://doi.org/10.2172/10112506
Bethel, W. 1993. "Analytic rendering of curvilinear volume data". United States. https://doi.org/10.2172/10112506. https://www.osti.gov/servlets/purl/10112506.
@article{osti_10112506,
title = {Analytic rendering of curvilinear volume data},
author = {Bethel, W},
abstractNote = {A technique is presented for analytically rendering volume data from curvilinear grids. The method employs analytic techniques for manipulating and rendering curvilinear voxels. A curvilinear voxel is represented using a cubic triparametric solid formulation. The control points defining the cubic triparametric voxel are computed from the original curvilinear grid using the Catmull-Rom formulation, and subsequently rendered using a three-dimensional forward difference operator. The primary benefit from using such a representation is the fact the voxel shape and data values are C1-continuous across voxel boundaries. The issue of voxel opacity, both at the sub-voxel and super-voxel levels, is investigated. The use of both tricubic representation and rendering, along with the new approach to managing voxel opacity, results in images which are markedly different from those presented in previous work.},
doi = {10.2172/10112506},
url = {https://www.osti.gov/biblio/10112506}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Mar 01 00:00:00 EST 1993},
month = {Mon Mar 01 00:00:00 EST 1993}
}