Reducing Artifacts in Volume Rendering by Higher Order Integration
Martijn de Boer, Alexander Gröpl, Jürgen Hesser, Reinhard Männer · 1997
In this paper we show that approximation errors predominate the artifacts that can be seen. A new integration scheme for solving the volume rendering equation is presented that leads to artifact free images and accurate resolutions down to voxel size. We propose a method for acquiring additional sample points needed for higher order integration very efficiently in order to allow the competing goals speed an accuracy to be traded off in a reasonable way. The computational overhead of this method is a factor of 2 to the conventional algorithm.