Table 1. Multi-information rate estimates.
model | [bit/pixel] |
MCGSM+multiscale | 3.44±4E-3 |
MCGSM | 3.40±4E-3 |
CGSM | 3.26±5E-3 |
MCG | 3.25±4E-3 |
CG (Gaussian) | 2.70±7E-3 |
Multi-information rate (MIR) estimates of natural images obtained with different models including the conditional Gaussian scale mixture (CGSM) with a 7x7 causal neighborhood [7] and a mixture of conditional Gaussians (MCG) with a 5x5 causal neighborhood [5]. The SEM corresponds to one standard deviation of the estimate for different test sets. Since each model gives us a lower bound on the true MIR, a larger value corresponds to a better model.