Sparse representation for frequency warping based voice conversion.
Xiaohai TianZhizheng WuSiu Wa LeeNguyen Quy HyEngsiong ChngMinghui DongPublished in: ICASSP (2015)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- compressive sensing
- image classification
- image patches
- reconstruction error
- compressed sensing
- random projections
- sparse approximations
- signal processing
- negative matrix factorization
- object tracking
- joint optimization
- image representation
- high dimensional data
- regularized least squares
- dimensionality reduction
- piecewise smooth
- sparse reconstruction
- neural network
- pattern recognition
- sparsity constraints
- sparse codes
- sparse coefficients
- visual words