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  Indian J Med Microbiol
 

Figure 12: Visual comparisons of reconstructed images of the Shepp–Logan phantom using simultaneous algebraic reconstruction technique (after 6 iterations) for both noiseless data and five different noise levels (left to right), using: Siddon ( first row), the proposed line integral model (second row), and the proposed hybrid model (third row)

Figure 12: Visual comparisons of reconstructed images of the Shepp–Logan phantom using simultaneous algebraic reconstruction technique (after 6 iterations) for both noiseless data and five different noise levels (left to right), using: Siddon ( first row), the proposed line integral model (second row), and the proposed hybrid model (third row)