The Detection Method for Surface Quality of Parts Based on PCA and Wavelet Transform
In this thesis, the digital figure of the defect of the casting elements is extracted by PCA. And a new method that simplifies the automatic quality detection is also brought forward. The author not only expounds the theory of PCA, the calculating method, the segmentation of digital figure and the feature extraction, but also analysis the real example to optimize the selecting of the preferences. This thesis is valuable in the real manufacture.
X. Ning et al., "The Detection Method for Surface Quality of Parts Based on PCA and Wavelet Transform", Advanced Materials Research, Vols. 314-316, pp. 2394-2397, 2011