Keyphrases
- weight update
- reconstruction error
- multiscale
- filter bank
- superpixels
- neural network
- bit rate
- online training
- reconstructed image
- subband
- sparse representation
- image processing
- sparse coding
- image representation
- back propagation
- singular value decomposition
- natural images
- objective function
- scale space
- multiresolution
- image segmentation
- wavelet transform
- technical support
- gradient vector
- learning rate
- classification error
- signal processing
- learning algorithm