For my master thesis I am researching ways to reduce image artifacts in direct volume rendering.
Perhaps you know some conventional approaches that are used in slicing.
Furthermore I am searching some example data sets that illustrate the image artifacts particularly well.
I would be happy if you could help me with this problem too.
If you search for volume rendering on this forum you will find lots of questions to give you ideas of where people have troubles. I strongly suggest you pick a specific problem to focus your work rather than starting with a general problem of volume rendering. Examples could be cone beam CT for dental planning or improving vessel visualization in the brain in MRA datasets. Perhaps someone here who has a particular use case can give you a problem to work on.