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B-splines are attractive basis functions for the continuousdomain representation of biomedical images and volumes. In this paper, we prove that the extended family of box splines are closed under the Radon transform and derive explicit formulae for their transforms. Our results are general; they cover all known brands of compactly-supported box splines (tensorproduct B-splines, separable or not) in any dimensions. In particular, we prove that the 2-D Radon transform of an Ndirection box splinedoi:10.1109/isbi.2010.5490105 dblp:conf/isbi/EntezariU10 fatcat:67stwgonvfejnnwdgpzn3dnob4