Feature Extraction for Evaluating the Complexity of Electromagnetic Environment Based on Adaptive Multiscale Morphological Gradient and Nonnegative Matrix Factorization.
Hua-Chen XiBing LiWen-Hui MaiXiong XuYa WangPublished in: J. Electr. Comput. Eng. (2022)
Keyphrases
- nonnegative matrix factorization
- multiscale
- feature extraction
- image processing
- principal component analysis
- wavelet transform
- negative matrix factorization
- morphological filtering
- matrix factorization
- least squares
- feature vectors
- image segmentation
- scale space
- edge detection
- face recognition
- original data
- spectral clustering
- information retrieval
- diffusion tensor images
- affine invariant
- document clustering
- gray scale
- natural images
- image classification
- feature space