Sparsity-promoting optimization techniques have, in recent years, gained prominence due to
the availability of efficient solvers and their capability to efficiently use inherent duplication …

We propose and study a reconstruction method for photoacoustic tomography (PAT) based
on total generalized variation (TGV) regularization for the inversion of the slice-wise 2D …

Compressed sensing (CS) exploiting inherent sparsity prior of signals has been proven
effective for sparse-view computed tomography (CT) image reconstruction from …

The weighted ℓ 1− 2 minimization has recently attracted some attention due to its capability
to deal with highly coherent matrices. Notwithstanding the availability of its stable recovery …

Local reconstruction from localized projections attains importance in Computed Tomography
(CT). Several researchers addressed the local recovery (or interior) problem in different …

The sub-sampling strategies in x-ray computed tomography (CT) have gained importance
due to their practical relevance. In this direction of research, also known as coded aperture x …

In electrical impedance tomography (EIT), one reconstructs the electric impedance of a part
of an object or human body from its surface measurements of voltages. Applications of EIT …

Frames with a large minimum angle between any two distinct frame vectors are desirable in
many present day applications. For a unit norm frame, the absolute value of the cosine of the …