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. Author manuscript; available in PMC: 2019 Jun 16.
Published in final edited form as: Phys Med Biol. 2019 Mar 13;64(6):065015. doi: 10.1088/1361-6560/ab0475

Figure 9.

Figure 9.

Shading correction results for the case of a manually inserted tumor with spatially-varying CT numbers. (a) uncorrected CBCT, (b) corrected CBCT, and (c) shading map obtained using the proposed algorithm.