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Proposed truncation correction methods in block diagram format. Shaded boxes correspond to the conventional steps of the M-line algorithm, white boxes correspond to the proposed truncation correction steps. (a) Basic approach (BA-R, BA-C). (b) Kink approach (BA-R, KA-C). The remaining block labels are as follows: view differentiation (VD), cosine weighting (CW), forward rebinning (FR), Hilbert filtering (HF), backward rebinning (BR), data selection (DS), and backprojection (BP).
