Adaptive Dictionary Learning in Sparse Gradient Domain for Image Recovery.
Qiegen LiuShanshan WangLeslie YingXi PengYanjie ZhuDong LiangPublished in: IEEE Trans. Image Process. (2013)
Keyphrases
- dictionary learning
- image recovery
- sparse representation
- compressive sensing
- gradient domain
- sparse coding
- image editing
- face recognition
- image classification
- signal processing
- image patches
- random projections
- image representation
- high dimensional data
- dimensionality reduction
- natural images
- unsupervised learning
- bag of words
- nearest neighbor
- convex sets
- image data
- high dimensional
- feature space
- data sets