73 citations · 173 across the 5 of their papers we have counts for
6 papers
Joint System and Algorithm Design for Computationally Efficient Fan Beam Coded Aperture X-ray Coherent Scatter Imaging
Ikenna Odinaka, Joseph A. O'Sullivan, David G. Politte +8
In x-ray coherent scatter tomography, tomographic measurements of the forward scatter distribution are used to infer scatter densities within a volume. A radiopaque 2D pattern plac…
Nonuniform Expansion of the Youngest Galactic Supernova Remnant G1.9+0.3
K. J. Borkowski, S. P. Reynolds, D. A. Green +4
We report measurements of X-ray expansion of the youngest Galactic supernova remnant, G1.9+0.3, using Chandra observations in 2007, 2009, and 2011. The measured rates strongly devi…
Supernova Ejecta in the Youngest Galactic Supernova Remnant G1.9+0.3
K. J. Borkowski, S. P. Reynolds, U. Hwang +4
G1.9+0.3 is the youngest known Galactic supernova remnant (SNR), with an estimated supernova (SN) explosion date of about 1900, and most likely located near the Galactic Center. On…
Level set estimation from projection measurements: Performance guarantees and fast computation
Kalyani Krishnamurthy, Waheed U. Bajwa, Rebecca Willett
Estimation of the level set of a function (i.e., regions where the function exceeds some value) is an important problem with applications in digital elevation mapping, medical imag…
Target Detection Performance Bounds in Compressive Imaging
Kalyani Krishnamurthy, Rebecca Willett, Maxim Raginsky
This paper describes computationally efficient approaches and associated theoretical performance guarantees for the detection of known targets and anomalies from few projection mea…
Radioactive Scandium in the Youngest Galactic Supernova Remnant G1.9+0.3
Kazimierz J. Borkowski, Stephen P. Reynolds, David A. Green +4
We report the discovery of thermal X-ray emission from the youngest Galactic supernova remnant G1.9+0.3, from a 237-ks Chandra observation. We detect strong K-shell lines of Si, S,…