Computational and Mathematical Methods in Medicine / 2015 / Article / Tab 1

Research Article

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

Table 1

Quantitative evaluation of the results with different regularization parameters.

Noise level ()NMAD (%)SNR (dB)

0.0%1.70940.90051.581935.5246
1.240637.6730
2.014732.9517

0.1%2.52695.74622.037133.1220
1.874234.5110
2.156132.4527