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 />
MAP Filters: Gamma MAP Filter<br />
18<br />
‣ Results (M = 9)<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 13.5<br />
<strong>Speckle</strong> Level Reduction<br />
9<br />
FOM<br />
0.49<br />
150<br />
150<br />
Ratio Image<br />
Variation Coefficient Distribution<br />
100<br />
100<br />
Standard Deviation<br />
0.95<br />
0.036<br />
Mean Distribution<br />
50<br />
50<br />
1<br />
Standard Deviation<br />
0.043<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 />
144
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