Document noise removal using sparse representations over learned dictionary.
Thanh-Ha DoSalvatore TabboneOriol Ramos TerradesPublished in: ACM Symposium on Document Engineering (2013)
Keyphrases
- sparse representation
- noise removal
- learned dictionary
- sparse coding
- dictionary learning
- noise reduction
- denoising
- anisotropic diffusion
- image enhancement
- compressive sensing
- image classification
- edge detection
- face recognition
- signal processing
- image patches
- random projections
- gaussian noise
- image representation
- high dimensional data
- document clustering
- document collections
- edge preserving
- natural images
- image processing
- text documents
- data mining
- pattern recognition
- signal to noise ratio
- dimensionality reduction
- high dimensional
- feature space