Comparison of ring artifact removal methods using flat panel detector based CT images

Table 2 Performance summary of the comparing algorithms in some aspects (Yes = '√' and No = '×')

Performance index	MWPN	WF	RCHT	RCP	SBRC
Is able to remove sharp varying intensity rings?	√	×	×	×	√
Is able to remove weak mis-calibrated rings?	√	√	√	√	√
Is able to remove radiant artifacts?	√	√	×	×	√
Is the corrected CT image free from blurring?	√	×	×	×	√
Is able to remove band ring artifacts?	×	×	×	√	√
Is diff. image is free from object information?	√	×	×	√	√
Is able to keep high contrast structure at iso-center?	×	×	×	√	×
Is applicable in dental-CT?	√	√	√	√	√
Is less sensitive to parameters setting?	×	√	√	√	√
Is able to suppress artifacts generally from all slices?	×	×	×	×	×

ISSN: 1475-925X