A CT Reconstruction Algorithm Based on Non-Aliasing Contourlet Transform and Compressive Sensing.
Luzhen DengPeng FengMianyi ChenPeng HeVo Quang Quang-sangBiao WeiPublished in: Comput. Math. Methods Medicine (2014)
Keyphrases
- compressive sensing
- contourlet transform
- high frequency
- image representation
- low frequency
- multiscale
- subband
- multiresolution
- sparse representation
- translation invariant
- image denoising
- frequency domain
- random projections
- discrete wavelet transform
- image classification
- wavelet transform
- signal processing
- high resolution
- image fusion
- visual quality
- sparse coding
- wavelet coefficients
- object recognition
- texture images
- image processing
- image retrieval
- image features
- feature space
- super resolution
- natural images
- dimensionality reduction
- edge detection
- motion estimation
- high quality