Since the light intensity is related to the size of the exposed area, the pixel intensity in the image depends on the distance of the pixel from the image center. In the analysis we assume an X-ray beam to be responsible for the intensity of a unary circular area in the object plane. The analysis is again based on Figs 12 and 13, in which the unary circular area is marked between the upper solid and dashed lines. Both models (i.e., object at 0 view angle and at arbitrary view angle) are analyzed separately.
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