Post-Processing for JPEG-Coded Image Deblocking via Sparse Representation and Adaptive Residual Threshold.
Liping WangXiao ZhouCheng-You WangBaochen JiangPublished in: KSII Trans. Internet Inf. Syst. (2017)
Keyphrases
- post processing
- coded images
- sparse representation
- blocking artifacts
- preprocessing
- image classification
- image representation
- dct domain
- dictionary learning
- test images
- face recognition
- sparse coding
- reconstructed image
- compressed sensing
- image data
- sparse coefficients
- filtering method
- compressive sensing
- compressed images
- post processed
- image patches
- data sets
- projections onto convex sets
- signal processing
- image features
- block boundaries
- multiscale
- input image
- image compression
- low bit rate
- random projections
- image retrieval
- feature extraction
- linear combination
- deblocking filter
- computer vision
- visual quality