Fundamentals of Computerized Tomography: Image Reconstruction from Projections
Fundamentals of Computerized Tomography: Image Reconstruction from Projections
Image quality assessment: from error visibility to structural similarity
IEEE Transactions on Image Processing
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The order in which the projection views are selected in the reconstruction of tomosynthesis by iterative algorithms, such as algebraic reconstruction technique (ART) and maximum likelihood (ML), has a strong effect on rate of convergence, accuracy and the edge-blurring artifacts in the reconstructed image. In this work, we compared several ordering schemes and characterized the image quality and the formation of out-of-plane artifacts. A new projection sequence is presented, which produces more accurate reconstructions with reduced artifact intensity compared to sequential ordering. The new ordering achieved more than a 48% improvement in image quality index for a uniform background phantom after two iterations.