Figure 4: Plot of SUR(i,j) against R(i,j) for a typical projection. Each point corresponds to a pixel (i,j) in the projection image. The solid line corresponds to the nonlinear regression fitting SUR(i,j) = A[R(i,j)]B + C
![Figure 4: Plot of SUR(i,j) against R(i,j) for a typical projection. Each point corresponds to a pixel (i,j) in the projection image. The solid line corresponds to the nonlinear regression fitting SUR(i,j) = A[R(i,j)]<sup>B</sup> + C](articles/2013/38/4/images/JMedPhys_2013_38_4_189_121197_f8.jpg)
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Figure 4: Plot of SUR(i,j) against R(i,j) for a typical projection. Each point corresponds to a pixel (i,j) in the projection image. The solid line corresponds to the nonlinear regression fitting SUR(i,j) = A[R(i,j)]B + C
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