Image reconstruction 2 Image reconstruction algorithm Tomography 2 Bayesian algorithms 1 Computer technology 1 Condition 1 Detection methods 1 Emission maxima 1 Expectation Maximization 1 Expectations maximization algorithms 1 Extraction 1 Image analysis 1 Images reconstruction 1 Internal defect detection 1 Iterative methods 1 Iterative reconstruction algorithm 1 Iterative reconstruction algorithms 1 Maximum likelihood 1 Maximum principle 1 Maximum-likelihood expectation maximizations 1 Multiplicative updates 1 Nondestructive examination 1 Performance 1 Signal to noise ratio 1 Simple++ 1 Textures 1 Utilization rates 1 Visual analysis 1 Wood 1 Wood defects 1