Multilevel Fine Fault Diagnosis Method for Motors Based on Feature Extraction of Fractional Fourier Transform.
Hao WuXue MaChenglin WenPublished in: Sensors (2022)
Keyphrases
- fractional fourier transform
- feature extraction
- log polar
- image processing
- principal component analysis
- image classification
- preprocessing
- feature space
- wavelet transform
- frequency domain
- face recognition
- feature vectors
- texture features
- feature selection
- space variant
- pattern recognition
- face images
- feature set
- vision system
- spatial domain