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 />
4<br />
Filter Assessment methods<br />
‣ <strong>Speckle</strong> Level – Variation Coefficient<br />
Obtained by computing the variation coefficient (C in the<br />
following) for several homogeneous areas of the data.<br />
Let W be the number of homogeneous areas H n , it comes<br />
This one is computed in the same areas before and after process<br />
and allows to compute the <strong>Speckle</strong> Level <strong>reduction</strong><br />
The higher it gets, the better it is
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