3 accepted papers
This study presents a technique for 2D tomography under unknown viewing angles when the distribution of the viewing angles is also unknown. Unknown view tomography (UVT) is a problem encountered in cryo-electron microscopy and in the geometric calibration of CT systems. There exists a moderate-sized…
Unbalanced optimal transport (UOT) has recently gained much attention due to its flexible framework for handling un-normalized measures and its robustness properties. In this work, we explore learning (structured) sparse transport plans in the UOT setting, i.e., transport plans have an upper bound o…
This paper presents a method for improving the recovery guarantee for signals that are sparse or compressible in some general basis (dictionary) using a splitting and reordering approach. The splitting algorithm applies existing results for dictionaries that are naturally characterized as a concaten…