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Improved Shift-Invariant Sparse Parsing of Mechanical Fault Based on Feature Atom.
Changkun Han
Wei Lu
Lingli Cui
Liuyang Song
Huaqing Wang
Published in:
IEEE Trans. Instrum. Meas. (2024)
Keyphrases
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shift invariant
sparse coding
wavelet domain
rotation invariant
discrete wavelet transform
wavelet coefficients
feature vectors
sparse representation
natural images
edge preserving
unsupervised learning
linear combination
feature set
multiscale
generative model
spatial domain
blurred images
high dimensional