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3DView (written
by Leonardo M. Rocha with supervision of Alexandre X. Falcão)
We have developed a software tool for fast 3D visualization of medical
images, called 3Dview. Although 3DView provides volume rendering
based on opacity classification and maximum intensity projection, it was
mainly designed for fast visualization of objects resulting from 2D/3D
image segmentation. In this context, its input can be the output of the
software tools: Livewire and
IVS, which have been developed
based on the image foresting transform.
Considering that less than 15% of the voxels are labeled as an object,
the most interesting approaches to address the speed problem use spatial
data structures that encode the presence and/or absence of high-opacity
voxels to eliminate computation in transparent as well as high opacity
regions of the volume. Among these approaches, two of the most successful
techniques have been shell rendering (SR) and
shear-warp rendering
(SWR). 3DView is based on a new approach, called shell rendering
with shear-warp factorization (SRSW), which combines the positive aspects
of SR and SWR to obtain further speed up gains without affecting the rendition
quality. Its main features are:
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3D Visualization of labeled and transparent objects
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3D Visualization of labeled and transparent objects combined with volume
data
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2D Visualization of three ortogonal cuts
-
2D Visualization of sequences of slices
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3D Visualization with planar cuts
-
3D Stereo visualization
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Volume rendering based on opacity classification
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Maximum Intensity Projection
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Classification by intensity and gradient curves
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3D training for opacity classification
You can download 3Dview for linuxhere
The following screenshots illustrate some of its features.
Next:About
this document ...Up:3D
Visualization of MedicalPrevious:Goals
of research
Leonardo Marques Rocha 2004-03-10