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. 2014 Oct 27;41(11):111912. doi: 10.1118/1.4898324

FIG. 2.

FIG. 2.

The side view of the cone-beam geometry. (a) A central sagittal slice illustrating the forward and backward operations. Dashed box and dotted box indicate the clinically used volume and the reconstruction volume, respectively. (b) Sagittal slides showing how the two forward projection terms in [Eq. (2)] are computed.