Computer Science Department, University of California, Santa Cruz
Abstract:
We introduce a new method for visualizing symmetric tensor fields.
The technique produces images and animations reminiscent of line integral convolution (LIC).
The technique is also slightly related to hyperstreamlines in
that it is used to visualize tensor fields.
However,
the similarity ends there.
HyperLIC uses a multi-pass approach to show the anisotropic properties
in a 2D or 3D tensor field.
We demonstrate this technique using
data sets from computational fluid dynamics as well as
diffusion-tensor MRI.
Paper:
A
pdf
version of the paper is available.
Images:
-
Single Pointload:
(a) Top view; (b) Side view; (c) Side view using Inverse HyperLIC;
(d) Zoomed view of the top portion.
-
Hemisphere:
|
|
|
(a)
|
(b)
|
(a) Inner layer;
(b) Middle layer.
The arrow points to a wedge point critical point.
-
2D Medical:
(a) Remapping with n=1;
(b) n=2;
(c) n=4;
(d) n=8;
(e) Animate HyperLIC without clearing the buffer.
-
3D Medical:
|
|
|
|
(a)
|
(b)
|
(c)
|
|
|
|
|
|
|
(d)
|
(e)
|
(f)
|
(g)
|
(h)
|
(a) Top oblique view with shading.
(b) Top oblique view with chromadepth rendering.
(c) Top oblique view without shading.
(d) Front view.
(e) Right view.
(f) Right view of the left portion.
(g) Bottom view of the top portion.
(h) Right view without shading.
Animation:
All animations are .avi files. Windows media player are needed
to play them for Windows users.
Please set "Repeat Forever" to play them over and over.
-
Top view of single point load data (2.38 MB).
-
Side view of single point load data (2.54 MB).
-
2D medical brain tensors remapping with n=4:
Coarse texture (1.42 MB),
Fine texture (5.52 MB),
-
2D medical brain tensors remapping with n=8:
Coarse texture (1.42 MB),
Fine texture (5.52 MB),
-
3D medical brain tensors with unshaded rendering:
High resolution: 1280 x 958 (63.4 MB),
Medium resolution: 768 x 575 (25.6 MB),
Low resolution: 461 x 345 (10.0 MB).
-
3D medical brain tensors with shaded rendering:
High resolution: 1280 x 958 (69.1 MB),
Medium resolution: 768 x 575 (27.3 MB),
Low resolution: 461 x 345 (10.5 MB).
-
3D medical brain tensors with chromadepth rendering:
High resolution: 1280 x 958 (86.1 MB),
Medium resolution: 768 x 575 (32.7 MB),
Low resolution: 461 x 345 (12.5 MB).
Return to AVIS home page.
