USING IMAGE SLICE VOXELS

2009.06.24 @ 12:42

(4)

Here’s a quick screencast showing how to use the voxel data texture to load and render image slices as 3D volumes. It may be a little unclear in this small window, but you can click through to Vimeo to see the HD/fullscreen version. This is using the sim_physics branch in blender SVN, you may be able to find builds for your system on graphicall.org.

MEDICAL VOXEL DATA

2009.06.20 @ 16:50

(8)

Today I committed some new additions to the blender sim_physics branch, making it easier to load up different types of voxel data sets for volume rendering within Blender. The most significant addition is a new ‘Image Sequence’ file format choice in the voxel data texture, which makes it easy to load up image slice sequences as the Z axis of a 3d voxel grid.

There are some other new features and optimisations mentioned in the commit log too. I really hope this helps people involved in medical visualisation/research, if only by providing them a free method for making animations with case data. If you are in the field, I’d love to hear from you.

Some test renders:

VOXELS -> VERTICES

2009.06.11 @ 08:05

(4)

Made a simple little script last night for testing voxel data loading – it creates vertices of a mesh based on voxel data, if the voxel’s value is above a threshold. The file’s here if you’re interested. The datasets this works with are available here.

I’m working on adding support for these, and also image sequences ( 3D voxel resolution = image X * image Y * number of frames), in Blender’s voxeldata texture, which should be interesting for people wanting to load up medical data. A preview animation is on vimeo.

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MATT EBB

USING IMAGE SLICE VOXELS

MEDICAL VOXEL DATA

VOXELS -> VERTICES