Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Bobby R. Hunt"'
Publikováno v:
Optical Engineering. 62
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fe161fc9ae345bf4f646390f41040c6
https://doi.org/10.1117/1.oe.62.1.013102
https://doi.org/10.1117/1.oe.62.1.013102
Publikováno v:
Optics express. 30(9)
D. L. Fried’s concept of a “Lucky Image” for turbulent image streams can be seen as creating different degrees of localized resolution in images. These localized regions of resolution can be derived from Fried’s equation for the probability o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::706d3711c87a504f2c68ed7f0d3e373c
https://pubmed.ncbi.nlm.nih.gov/35473259
https://pubmed.ncbi.nlm.nih.gov/35473259
Publikováno v:
Unconventional Imaging and Adaptive Optics 2021.
A block-based, streaming, multi-frame blind deconvolution (MFBD) mitigation method is presented for restoration of imagery impacted by space-variant atmospheric turbulence. An incremental approach is taken, referred to as “streaming”, which opera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38934878b20d15cf14ae687395cd3925
https://doi.org/10.1117/12.2594048
https://doi.org/10.1117/12.2594048
Publikováno v:
Optical Sensors and Sensing Congress.
The probability of a diffraction limited image in the presence of atmospheric turbulence was formulated by Fried in 1978. Implications of that analysis regarding general statistics of ro for a fixed aperhrre size are derived.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ece90a64e9a9ce4c6d72094ecc56341
https://doi.org/10.1364/pcaop.2020.pm4d.1
https://doi.org/10.1364/pcaop.2020.pm4d.1
Publikováno v:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXX.
Long-range imaging requires effective compensation for the wavefront distortions caused by atmospheric turbulence. These distortions can be characterized by their effect on the point spread function (PSF). Consequently, synthesizing PSFs with the app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84515754aac159a3c5f326a8cadb3039
https://doi.org/10.1117/12.2517937
https://doi.org/10.1117/12.2517937
Resolution limits for shadow imaging of geosynchronous satellites: analytic and simulated approaches
Publikováno v:
Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2017.
Shadow imaging is a technique to obtain highly resolved silhouettes of resident space objects (RSOs) which would otherwise be unattainable using conventional terrestrial based imaging approaches. This is done by post processing the measured irradianc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7356a99fa4ff046ecc4ca01d6782d365
https://doi.org/10.1117/12.2274837
https://doi.org/10.1117/12.2274837
Shadow imaging of geosynchronous satellites: simulation, image reconstruction, and shadow prediction
Publikováno v:
SPIE Proceedings.
Shadow imaging is a technique to obtain highly resolved silhouettes of resident space objects (RSOs) which would otherwise be unattainable using conventional terrestrial based imaging approaches. This is done by post processing the measured irradianc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c247d01581788b262310df5e0b807cb6
https://doi.org/10.1117/12.2238088
https://doi.org/10.1117/12.2238088
Publikováno v:
Optical Engineering. 57:1
Atmospheric turbulence is a fundamental problem in imaging through long slant ranges, horizontal-range paths, or uplooking astronomical cases through the atmosphere. An essential characterization of atmospheric turbulence is the point spread function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5083529872cb0dcb9a60a21017a91ef7
https://doi.org/10.1117/1.oe.57.2.024101
https://doi.org/10.1117/1.oe.57.2.024101
Publikováno v:
ICIP (3)
Blur identification is a crucial first step in many image restoration techniques. An approach for identifying image blur using vector quantizer encoder distortion is proposed. The blur in an image is identified by choosing from a finite set of candid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26adb066e5befa30fad25bf73a1ff0e0
https://doi.org/10.1109/83.908524
https://doi.org/10.1109/83.908524
Publikováno v:
IEEE Transactions on Image Processing. 9:295-298
This correspondence presents an improved version of an algorithm designed to perform image restoration via nonlinear interpolative vector quantization (NLIVQ). The improvement results from using lapped blocks during the decoding process. The algorith
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::398fdf8011b4c53c36d5c6621d976572
https://doi.org/10.1109/83.821746
https://doi.org/10.1109/83.821746