Fast Volume Rendering with Adjustable Color Maps
Kazufumi Kaneda, Yoshinori Dobashi, Kazunori Yamamoto, Hideo Yamashita
Proc. 1996 Symopsium on Volume Visualization, pp. 7-14 (1996)
ABSTRACT
In scientific visualization, it is necessary to visualize the distribution
of a scalar field by using adjustable color maps
in conjunction with a pseudo-color display.
This paper proposes a method for fast direct volume rendering
when color maps undergo change.
The method pre-calculates basis images that are independent from the color maps.
The rendered images for an arbitrary color map are then generated
by compositing the basis images.
The proposed method makes possible interactive observation of changing color maps
with a fixed viewpoint.
Keywords: Volume rendering, Color map, Fourier series, Basis image
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Figure 4: Visualization of a fuel density distribution.
(a), (b), (c) The proposed method.
(d) A traditional direct volume rendering using a ray casting.
(e) A splatting method.
Figure 5: Visualization of an eddy current intensity distribution
by altering the color maps.
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