Weak Fault Feature Extraction of Rolling Bearings Using Local Mean Decomposition-Based Multilayer Hybrid Denoising.
Jianbo YuJingxiang LvPublished in: IEEE Trans. Instrum. Meas. (2017)
Keyphrases
- denoising
- feature extraction
- wavelet packet
- image processing
- image denoising
- vibration signal
- frequency domain
- image decomposition
- monitoring and fault diagnosis
- fault diagnosis
- natural images
- noisy images
- wavelet transform
- noise removal
- total variation
- numerical solution
- image classification
- feature space
- feature extractors
- fault detection
- extracted features
- wavelet domain
- face recognition
- denoising algorithm
- fault model
- preprocessing
- multiresolution
- principal component analysis
- texture features
- dimension reduction
- feature representation
- pattern classification
- discriminant analysis
- iris recognition
- gabor filters
- denoising methods
- decomposition algorithm
- input image
- defect detection
- palmprint
- linear feature extraction
- noise level