Iterative weighted sparse representation for X-ray cardiovascular angiogram image denoising over learned dictionary.
Zhenghua HuangQian LiTianxu ZhangNong SangHanyu HongPublished in: IET Image Process. (2018)
Keyphrases
- x ray
- image denoising
- learned dictionary
- sparse representation
- natural images
- sparse coding
- image patches
- denoising
- compressive sensing
- noisy images
- face recognition
- total variation
- image classification
- image processing
- wavelet coefficients
- signal processing
- multiscale
- three dimensional
- test images
- high dimensional data
- object recognition
- dimensionality reduction
- higher order
- input image
- feature extraction
- image representation
- convex optimization
- random projections
- wavelet transform
- motion estimation
- ground truth