Unsupervised High-Level Feature Extraction of SAR Imagery With Structured Sparsity Priors and Incremental Dictionary Learning.
Jiawei ChenLicheng JiaoWenping MaHongying LiuPublished in: IEEE Geosci. Remote. Sens. Lett. (2016)
Keyphrases
- group sparsity
- dictionary learning
- structured sparsity
- feature extraction
- sparse coding
- synthetic aperture radar
- sparse representation
- unsupervised learning
- image classification
- sar images
- face recognition
- feature selection
- statistical learning
- dimensionality reduction
- compressive sensing
- principal component analysis
- image processing
- feature space
- learning problems
- supervised learning
- group lasso
- semi supervised
- feature vectors
- low rank
- wavelet transform
- image patches
- regression model
- parameter estimation
- object recognition