114 citations · 223 across the 3 of their papers we have counts for
4 papers
An Uncertainty Principle for Discrete Signals
Sangnam Nam
By use of window functions, time-frequency analysis tools like Short Time Fourier Transform overcome a shortcoming of the Fourier Transform and enable us to study the time- frequen…
Greedy-Like Algorithms for the Cosparse Analysis Model
Raja Giryes, Sangnam Nam, Michael Elad +2
The cosparse analysis model has been introduced recently as an interesting alternative to the standard sparse synthesis approach. A prominent question brought up by this new constr…
Constrained Overcomplete Analysis Operator Learning for Cosparse Signal Modelling
Mehrdad Yaghoobi, Sangnam Nam, Remi Gribonval +1
We consider the problem of learning a low-dimensional signal model from a collection of training samples. The mainstream approach would be to learn an overcomplete dictionary to pr…
The Cosparse Analysis Model and Algorithms
Sangnam Nam, Mike E. Davies, Michael Elad +1
After a decade of extensive study of the sparse representation synthesis model, we can safely say that this is a mature and stable field, with clear theoretical foundations, and ap…