In our previous paper (10) we proposed new variants of the Discrete Algebraic Recon- struction Technique with combined filtering technique and p erformed experiments on binary soft- ware phantoms within a new test framework to investigate the effect of the filters. Continuing our work, in this paper we extend our study to multivalued phantoms for a deeper investigation in this field. We create a new test phantom set with different intensi ty levels and perform a comprehensive experimental study. The results are evaluated with Relative Mean Error which is extended to multi- valued discrete phantoms. We use a ranking system to create different views to our quantitative data. Finally, the achievements are discussed.
['Antal Nagy']
Experimental Study on Multivalued Phantoms Using Different Filters in the DART Algorithm