A no-reference Image sharpness metric based on structural information using sparse representation.
Qingbo LuWengang ZhouHouqiang LiPublished in: Inf. Sci. (2016)
Keyphrases
- structural information
- sparse representation
- image quality assessment
- structural similarity
- image classification
- test images
- image representation
- reconstruction error
- dictionary learning
- input image
- reduced reference
- sparse reconstruction
- image features
- sparse coding
- single image
- piecewise smooth
- quality metrics
- image data
- sparse coefficients
- image quality
- compressive sensing
- image regions
- joint optimization
- compressed sensing
- face recognition
- image patches
- signal processing
- multiscale
- image segmentation
- image set
- quality assessment
- spatial information
- high resolution
- image retrieval
- random projections
- generative model
- natural images
- dimensionality reduction
- low level
- topological information
- pattern recognition