Electronic Resource
Springer
The visual computer
6 (1990), S. 2-7
ISSN:
1432-2315
Keywords:
Volume rendering
;
Voxel
;
Adaptive refinement
;
Adaptive sampling
;
Ray tracing
Source:
Springer Online Journal Archives 1860-2000
Topics:
Computer Science
Notes:
Abstract Volume rendering is a technique for visualizing sampled scalar functions of three spatial dimensions by computing 2D projections of a colored semi-transparent gel. This paper presents a volume-rendering algorithm, in which image quality is adaptively refined over time. An initial image is generated by casting a small number of rays into the data, less than one ray per pixel, and interpolating between the resulting colors. Subsequent images are generated by alternately casting more rays and interpolating. The usefulness of these rays is maximized by distributing them according to measures of local image complexity. Examples from two applications are given: molecular graphics and medical imaging.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01902624
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