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Reconstruction results, top: reconstruction of the original sinogram, middle: reconstruction of the trajectory result, bottom: absolute difference images. The gray scale window for the reconstruction results is [ − 1000, 50 HU] and for the absolute difference images [0, 50 HU]. The maximal absolute difference for the ellipse is 232 HU, for the two circles 256 HU and for the modified two circles 125 HU.
