144 citations · 341 across the 27 of their papers we have counts for
6 papers · 1 filter
Feedback Acquisition and Reconstruction of Spectrum-Sparse Signals by Predictive Level Comparisons
Mahdi Boloursaz Mashhadi, Saeed Gazor, Nazanin Rahnavard +1
In this letter, we propose a sparsity promoting feedback acquisition and reconstruction scheme for sensing, encoding and subsequent reconstruction of spectrally sparse signals. In…
Bounds on Discrete Fourier Transform of Random Mask
Nematollah Zarmehi, Farokh Marvasti
This paper proposes some bounds on the maximum of magnitude of a random mask in Fourier domain. The random mask is used in random sampling scheme. Having a bound on the maximum val…
Iterative method for simultaneous sparse approximation
Sahar Sadrizadeh, Shahrzad Kiani, Mahdi Boloursaz +1
This paper studies the problem of Simultaneous Sparse Approximation (SSA). This problem arises in many applications which work with multiple signals maintaining some degree of depe…
Measurement-Adaptive Sparse Image Sampling and Recovery
Ali Taimori, Farokh Marvasti
This paper presents an adaptive and intelligent sparse model for digital image sampling and recovery. In the proposed sampler, we adaptively determine the number of required sample…
Adaptive Singular Value Thresholding
Nematollah Zarmehi, Farokh Marvasti
In this paper, we propose an Adaptive Singular Value Thresholding (ASVT) for low rank recovery under affine constraints. Unlike previous iterative methods that the threshold level…
A Convex Similarity Index for Sparse Recovery of Missing Image Samples
Amirhossein Javaheri, Hadi Zayyani, Farokh Marvasti
This paper investigates the problem of recovering missing samples using methods based on sparse representation adapted especially for image signals. Instead of -norm or Mean S…