Speckle noise reduction
Speckle noise reduction
Speckle noise reduction
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<strong>Speckle</strong> <strong>noise</strong> <strong>reduction</strong>: a review – Ph. Courmontagne<br />
Adaptive Filters – 1 st form: Enhanced Lee Filter<br />
11<br />
‣ Results (M = 7)<br />
250<br />
200<br />
250<br />
200<br />
Computing Time T/T 0 3.6<br />
De-<strong>noise</strong>d SAS data<br />
Variance Reduction 10.8<br />
<strong>Speckle</strong> Level Reduction<br />
5.9<br />
FOM<br />
0.57<br />
150<br />
150<br />
Ratio Image<br />
Variation Coefficient Distribution<br />
100<br />
100<br />
Standard Deviation<br />
0.92<br />
0.057<br />
Mean Distribution<br />
50<br />
50<br />
1<br />
Standard Deviation<br />
0.040<br />
De-<strong>noise</strong>d SAS data<br />
0<br />
Ratio Image<br />
0<br />
<strong>Speckle</strong> Noise Distribution<br />
Correlation Factor<br />
66
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