Research Article

A Novel Method for Surface Defect Detection of Photovoltaic Module Based on Independent Component Analysis

Figure 4

Reconstruction of solar cell image using different numbers of ICs with obvious spiky points: (a) original gray-level profile of the row image in Figure 6(a); (b)~(d) reconstructed row images using 10, 25, and 30 ICs, respectively.
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(a) Gray-level profiles
520568.fig.004b
(b)
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(c)
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(d)