Hybrid filtering and enhancement of high-resolution adaptive-optics retinal images

2009 ◽  
Vol 34 (22) ◽  
pp. 3484 ◽  
Author(s):  
Hua Bao ◽  
Changhui Rao ◽  
Yudong Zhang ◽  
Yun Dai ◽  
Xuejun Rao ◽  
...  
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Retinal Images ◽  
Hybrid Filtering

scholarly journals Understanding the changes of cone reflectance in adaptive optics flood illumination retinal images over three years

2016 ◽  
Vol 7 (7) ◽  
pp. 2807 ◽  
Author(s):  
Letizia Mariotti ◽  
Nicholas Devaney ◽  
Giuseppe Lombardo ◽  
Marco Lombardo
Keyword(s):  
Adaptive Optics ◽  
Retinal Images

scholarly journals Marginal blind deconvolution of adaptive optics retinal images

2011 ◽  
Vol 19 (23) ◽  
pp. 23227 ◽  
Author(s):  
L. Blanco ◽  
L. M. Mugnier
Keyword(s):  
Adaptive Optics ◽  
Blind Deconvolution ◽  
Retinal Images

scholarly journals High-Resolution Adaptive Optics in Vivo Autofluorescence Imaging in Stargardt Disease

2019 ◽  
Vol 137 (6) ◽  
pp. 603 ◽  
Author(s):  
Hongxin Song ◽  
Ethan A. Rossi ◽  
Qiang Yang ◽  
Charles E. Granger ◽  
Lisa R. Latchney ◽  
...  
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Autofluorescence Imaging ◽  
Stargardt Disease

New View of the Solar Chromosphere

2019 ◽  
Vol 57 (1) ◽  
pp. 189-226 ◽  
Author(s):  
Mats Carlsson ◽  
Bart De Pontieu ◽  
Viggo H. Hansteen
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Numerical Models ◽  
Transverse Magnetic ◽  
Solar Photosphere ◽  
Solar Chromosphere ◽  
Image Reconstruction Techniques ◽  
New Instrumentation ◽  
Field Unit ◽  
The Impact

The solar chromosphere forms a crucial, yet complex and until recently poorly understood, interface between the solar photosphere and the heliosphere. ▪ Advances in high-resolution instrumentation, adaptive optics, image reconstruction techniques, and space-based observatories allow unprecedented high-resolution views of the finely structured and highly dynamic chromosphere. ▪ Dramatic progress in numerical computations allows 3D radiative magnetohydrodynamic forward models to take the place of the previous generation of 1D semiempirical atmosphere models. These new models provide deep insight into complex nonlocal thermodynamic equilibrium chromospheric diagnostics and enable physics-based interpretations of observations. ▪ This combination of modeling and observations has led to new insights into the role of shock waves, transverse magnetic waves, magnetic reconnection and flux emergence in the chromospheric energy balance, the formation of spicules, the impact of ion-neutral interactions, and the connectivity between chromosphere and transition region. ▪ During the next few years, the advent of new instrumentation (integral-field-unit spectropolarimetry) and observatories (ALMA, DKIST), coupled with novel inversion codes and expansion of existing numerical models to deal with ever more complex physical processes (including multifluid approaches), is expected to lead to major new insights into the dominant heating processes in the chromosphere and beyond.

Deep Near-Infrared Surveys and Young Brown Dwarf Populations in Star-Forming Regions

2003 ◽  
Vol 211 ◽  
pp. 87-90
Author(s):  
M. Tamura ◽  
T. Naoi ◽  
Y. Oasa ◽  
Y. Nakajima ◽  
C. Nagashima ◽  
...  
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Near Infrared ◽  
Brown Dwarf ◽  
Ir Camera ◽  
Star Forming ◽  
Star Forming Regions ◽  
New Instrument ◽  
Infrared Surveys ◽  
Low Mass

We are currently conducting three kinds of IR surveys of star forming regions (SFRs) in order to seek for very low-mass young stellar populations. First is a deep JHKs-bands (simultaneous) survey with the SIRIUS camera on the IRSF 1.4m or the UH 2.2m telescopes. Second is a very deep JHKs survey with the CISCO IR camera on the Subaru 8.2m telescope. Third is a high resolution companion search around nearby YSOs with the CIAO adaptive optics coronagraph IR camera on the Subaru. In this contribution, we describe our SIRIUS camera and present preliminary results of the ongoing surveys with this new instrument.

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