Multiscale directional transforms based on cosine-sine modulated filter banks for sparse directional image representation.
Yusuke NomuraRyutaro OgawaSeisuke KyochiTaizo SuzukiPublished in: APSIPA (2017)
Keyphrases
- image representation
- multiscale
- filter bank
- contourlet transform
- subband
- image coding
- sparse coding
- sparse representation
- multiscale decomposition
- scale space
- image content
- bag of words
- natural images
- wavelet transform
- perfect reconstruction
- image fusion
- visual words
- wavelet packet
- multiresolution
- low pass
- feature vectors
- bit rate
- image classification
- quadtree
- image segmentation
- lapped transforms
- discrete fourier transform
- discrete cosine transform
- image processing
- wavelet domain
- feature space
- image compression
- superpixels
- wavelet coefficients
- edge detection
- directional information
- lifting scheme
- high frequency
- image denoising
- wavelet decomposition
- discrete wavelet transform
- representation scheme
- image retrieval
- image features
- index structure
- local binary pattern