| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1677655 | Ultramicroscopy | 2013 | 8 Pages |
Abstract
⺠We studied the statistical effect of a PCA and weighted PCA noise filter on EELS spectrum images. ⺠In a PCA scree plot, there are no pure noise or signal components. ⺠PCA filtering can introduce considerable bias, offsetting the benefits of better SNR. ⺠An evaluation criterion for estimating the validity of PCA filtering is proposed.
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Authors
Stijn Lichtert, Jo Verbeeck,