Computational and Mathematical Methods in Medicine / 2015 / Article / Tab 2

Research Article

A Model of Regularization Parameter Determination in Low-Dose X-Ray CT Reconstruction Based on Dictionary Learning

Table 2

Comparing criterions of the results reconstructed by different algorithms (Shepp-Logan).

AlgorithmCriterionNoise level
0.0%0.1%0.2%

SARTNMAD (%)2.15102.92734.1032
SNR (dB)33.544831.522028.7997
GPBBNMAD (%)1.34721.78263.0473
SNR (dB)36.544334.614030.5004
ADSIRNMAD (%)0.81100.95531.1823
SNR (dB)35.774034.851633.3413
AWR-ADSIRNMAD (%)0.82231.06391.1549
SNR (dB)35.535434.548033.7801