Single image super resolution based on sparse representation using discrete wavelet transform.
Selen AyasMurat EkinciPublished in: Multim. Tools Appl. (2018)
Keyphrases
- discrete wavelet transform
- single image super resolution
- sparse representation
- sparse coding
- dictionary learning
- image patches
- multiresolution
- wavelet domain
- high frequency
- subband
- compressive sensing
- wavelet coefficients
- signal processing
- image classification
- face recognition
- random projections
- image representation
- high dimensional data
- dimensionality reduction
- feature vectors
- visual quality
- denoising
- multiscale
- machine learning
- bit rate
- image denoising
- higher order
- wavelet transform
- high resolution
- high quality
- image processing