Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Richard G. Paxman"'
Publikováno v:
ACSSC
This work focuses on assessing the information- theoretic limits of parameter estimation in plenoptic imaging systems, which are capable of providing substantially more information about a given scene than conventional cameras. We present a framework
Autor:
Jason J. Miller, David A. Carrara, Michael A. Rucci, Richard G. Paxman, Kurt W. Gleichman, Barry K. Karch
Publikováno v:
Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2019.
Publikováno v:
Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP).
We propose an isoplanatic angle definition that is tied to restoration of turbulence-degraded imagery. This new metric is intended to guide patch size selection in post-processing for restoration without adaptive optics.
Autor:
Richard G. Paxman, Jason J. Miller, Timothy J. Rogne, Brett A. Sickmiller, Candice G. Vollweiler, Daniel A. LeMaster
Publikováno v:
Optics express. 24(25)
We explore the feasibility of post-detection restoration when imaging through deep turbulence characterized by extreme anisoplanatism. A wave-optics code was used to simulate relevant short-exposure point spread functions (PSFs) and their decorrelati
Autor:
David A. Carrara, Richard G. Paxman, Timothy J. Rogne, Candice G. Vollweiler, Christopher Bailey, Michael A. Rucci, Kurt W. Gleichman, Brett A. Sickmiller
Publikováno v:
Optics Express. 27:32938
We present field-experiment support for the feasibility of post-detection restoration when imaging through deep turbulence characterized by extreme anisoplanatism. Short-exposure images of point-like and minimally extended objects (MEOs) were collect
Publikováno v:
Imaging and Applied Optics.
Autor:
Samuel M. Hoffman, Kimani C. Toussaint, Thomas G. Bifano, Yang Lu, John Moore, Richard G. Paxman, Christopher R. Stockbridge
Publikováno v:
ResearcherID
We demonstrate steady-state focusing of coherent light through dynamic scattering media. The phase of an incident beam is controlled both spatially and temporally using a reflective, 1020-segment MEMS spatial light modulator, using a coordinate desce
Autor:
Aaron J. Berliner, Richard G. Paxman, Yang Lu, Kimani C. Toussaint, Santosh Tripathi, John Moore, Thomas G. Bifano, Christopher R. Stockbridge
Publikováno v:
MEMS Adaptive Optics VI.
A reflective microelectromechanical mirror array was used to control the intensity distribution of a coherent beam that was propagated through a strongly scattering medium. The controller modulated phase spatially in a plane upstream of the scatterin
Publikováno v:
Frontiers in Optics 2012/Laser Science XXVIII.
Nearly all imaging systems exhibit aberrations with some degree of field dependence. We examine sensing and managing space-variant wavefront error when imaging (1) with multiple-telescope arrays, (2) through extended-path turbulence, and (3) through
Autor:
Samuel M. Hoffman, Thomas G. Bifano, Chris Stockbridge, Yang Lu, Kimani C. Toussaint, John Moore, Richard G. Paxman
Publikováno v:
Scopus-Elsevier
Experiments demonstrating controlled optical propagation through a dynamic, highly scattering medium are described. The phase of a coherent beam is controlled both spatially and temporally using a reflective, 1020-segment MEMS spatial light modulator