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Table 1 Noise model parameters estimated from the whole test picture

From: Unsupervised estimation of signal-dependent CCD camera noise

  σ u 2 σ w 2 PN% CD SNRdB SNR dB
Step 1       
B 0.173 8.96 49 0.90 24.41 28.76
G1 0.033 18.77 17 0.08 29.85 32.14
G2 0.036 17.22 20 0.09 30.09 32.35
R 0.104 11.71 33 0.56 26.81 30.08
Step 2       
B 3.435 1985.8 58 0.91 24.23 28.65
G1 2.959 2417.4 72 0.84 29.54 32.53
G2 3.149 2044.0 76 0.90 29.51 32.54
R 2.973 2032.7 63 0.94 26.48 30.06
Step 3       
B 1.252 1035.6 49 0.96 27.88 29.19
G 1.944 1276.1 76 0.83 31.59 34.27
R 1.124 870.1 61 0.83 30.48 31.76
  1. CD ranges in [0,1] and measures the alignment of scatter-points. PN% is the percentage of photon noise in the total amount. SNR’ is SNR calculated after LMMSE denoising tailored on noise model parameters.