VolumeRendering

Pre- and Post-Classification

Slicer Framework | | Ring Artifacts

Pre-classification: Transfer function is applied on scalar values. Afterwards tri-linear interpolation takes place.

Post-classification: Tri-linear interpolation of scalar values. Afterwards transfer function is applied on interpolated scalar values.

Middle-ear with Pre- vs. Post-Classification:

TF-Pre TF-Post images by Christoph Rezk-Salama and Peter Hastreiter

Conclusion: Post-classification is by far superior!

Slicer Framework | | Ring Artifacts

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