2.1k citations · 4.6k across the 69 of their papers we have counts for
4 papers · 2 filters
Sketching for Simultaneously Sparse and Low-Rank Covariance Matrices
Sohail Bahmani, Justin Romberg
We introduce a technique for estimating a structured covariance matrix from observations of a random vector which have been sketched. Each observed random vector …
Efficient Compressive Phase Retrieval with Constrained Sensing Vectors
Sohail Bahmani, Justin Romberg
We propose a robust and efficient approach to the problem of compressive phase retrieval in which the goal is to reconstruct a sparse vector from the magnitude of a number of its l…
Compressive Sampling of Ensembles of Correlated Signals
Ali Ahmed, Justin Romberg
We propose several sampling architectures for the efficient acquisition of an ensemble of correlated signals. We show that without prior knowledge of the correlation structure, eac…
Lifting for Blind Deconvolution in Random Mask Imaging: Identifiability and Convex Relaxation
Sohail Bahmani, Justin Romberg
In this paper we analyze the blind deconvolution of an image and an unknown blur in a coded imaging system. The measurements consist of subsampled convolution of an unknown blurrin…