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Table 2 EM-estimated parameters of the “Nazca bird” noisy multisensor image according to different Markov models

From: Dempster–Shafer fusion of multisensor signals in nonstationary Markovian context

HMC parameters estimated by EM

  

μ

σ

  

Noise densities parameters

ω 1

0.3593

1.0331

  
 

ω 2

1.1189

0.9526

  
  

ω 1

ω 2

  

Transition matrix

ω 1

0.7328

0.2672

  
 

ω 2

0.1525

0.8475

  

Evidential HMC parameters estimated by EM

   

μ

 

σ

Noise densities parameters

    
 

ω 1

−0.0652

 

0.9498

 

ω 2

1.0284

 

0.9676

  

ω 1

ω 2

 

Ω

Transition mass

ω 1

0.0105

0.0403

 

0.0008

 

ω 2

0.0402

0.6726

 

0.0008

 

Ω

0.0008

0.0008

 

0.2332

Multisensor stationary HMC parameters estimated by EM

  

μ 1

μ 2

σ 1

σ 2

Noise densities parameters

ω 1

0.2964

0.6025

1.0745

1.3182

 

ω 2

1.0061

1.9891

0.9831

1.0092

 

Ω

4.0104

0.9929

  

ω 1

 

ω 2

 

Transition mass

ω 1

    
 

ω 2

    

Multisensor nonstationary HMC parameters estimated by EM

  

μ 1

μ 2

σ 1

σ 2

Noise densities parameters

ω 1

0.0046

−0.0356

0.9994

0.9644

 

ω 2

0.9928

1.9893

0.9843

0.9941

 

Ω

4.0099

0.9927

   

ω 1

ω 2

Ω

Transition mass

ω 1

0.0074

0.0108

0.0022

  

ω 2

0.0106

0.7096

0.0016

  

Ω

0.0024

0.0014

0.2540