Deblurring of Document Images Based on Sparse Representations Enhanced by Non-local Means.
Nibal NayefPetra Gomez-KrämerJean-Marc OgierPublished in: ICPR (2014)
Keyphrases
- scanned documents
- sparse representation
- document images
- denoising
- dictionary learning
- noise removal
- sparse coding
- document image analysis
- face recognition
- natural images
- image denoising
- document analysis
- compressive sensing
- optical character recognition
- image patches
- regularized least squares
- dimensionality reduction
- high dimensional data
- joint optimization
- image classification
- image deblurring
- inverse problems
- image restoration
- signal processing
- noisy images
- image representation
- page segmentation
- total variation
- printed documents
- sparse reconstruction
- image processing
- page layout
- gaussian noise
- noise reduction
- image reconstruction
- word spotting
- edge detection
- historical documents
- computer vision