Shift-variant non-negative matrix deconvolution for music transcription.
Holger KirchhoffSimon DixonAnssi KlapuriPublished in: ICASSP (2012)
Keyphrases
- shift variant
- inverse problems
- image restoration
- point spread function
- shift invariant
- image reconstruction
- blurred images
- global optimization
- restored image
- motion blur
- convex optimization
- least squares
- partial differential equations
- optimization methods
- image deblurring
- weighted least squares
- total variation
- edge preserving
- early vision
- blind deconvolution
- computationally demanding
- transfer function
- multiple images
- spatial domain
- smoothness constraint
- additive noise
- sparse coding
- wiener filter
- computationally efficient
- optimization problems
- markov random field
- denoising