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. Author manuscript; available in PMC: 2015 Mar 16.
Published in final edited form as: Proc IEEE Int Symp Biomed Imaging. 2009 Jun-Jul;2009:1398–1401. doi: 10.1109/ISBI.2009.5193327

Fig. 1.

Fig. 1

Radial integration of the PDF, (a) in a cone of constant solid angle (i.e., the factor r2 is considered), and (b) by linear projection (i.e., inaccurately without the factor r2).