Image superresolution by midfrequency sparse representation and total variation regularization.
Jian XuZhiguo ChangJiulun FanXiaoqiang ZhaoXiaomin WuYanzi WangPublished in: J. Electronic Imaging (2015)
Keyphrases
- wavelet transform
- sparse representation
- multiscale
- image super resolution
- total variation regularization
- super resolution
- image representation
- high resolution
- low resolution images
- test images
- single image
- dictionary learning
- image classification
- high resolution images
- image patches
- low resolution
- image denoising
- image data
- piecewise smooth
- image restoration
- degraded images
- total variation
- image deblurring
- compressive sensing
- image features
- natural images
- sparse coding
- machine learning
- locally adaptive
- denoising
- input image
- edge detection
- image reconstruction
- high dimensional data
- computer vision
- image processing
- face recognition
- high quality
- image retrieval
- multi frame
- reconstruction method