Volume Visualization Visualization II MSIM 842, CS 795/895. Instructor: Jessica Crouch. Volume Viz Problem:. Data points fill a 3D volume You can only display one 2D image at a time Naïve rendering of a volume will just let you see the surface
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Volume VisualizationVisualization IIMSIM 842, CS 795/895
and one of the following:
Scalar Voxel Viz.
1. Render an isosurface: Use Marching Cubes Algorithm
2. Ray Casting: Integrate scalar variable along the view direction
Feed forward: Splatting
We need to fill the pixel values between the
volume projection samples
Need to know the 3D extent of each voxel, and
Then project the extent to the image plane
This is called ‘footprint’
These are good ways of looking directly at the recorded data. What could you do to focus attention on significant features in the data?
Derivative in X direction
Derivative in Y direction
[dI/dx dI/dy dI/dz]
Follow the flow of a vector field, tracing the path a particle would take