Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Nojan Motamedi"'
Publikováno v:
Applied optics. 56(14)
Fiber-coupled image sensors have attracted interest in recent years for high-resolution conformal image transfer, including mapping of the spherical image surface of a monocentric wide-angle lens to one or more flat focal plane sensors. However, imag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b539828847faaf570c51b9144cdeb8c8
https://pubmed.ncbi.nlm.nih.gov/29047531
https://pubmed.ncbi.nlm.nih.gov/29047531
Autor:
Joseph E. Ford, Ash Arianpour, William M. Mellette, Rick L. Morrison, Ilya P. Agurok, Ryan Tennill, Glenn M. Schuster, Ron A. Stack, Adam Johnson, Nojan Motamedi, Salman Karbasi, Igor Stamenov
Publikováno v:
SPIE Newsroom.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b651428ea78659f2eef7e532c202e4a0
https://doi.org/10.1117/2.1201611.006666
https://doi.org/10.1117/2.1201611.006666
Publikováno v:
Optics express. 23(26)
An efficient method for computing the problem of an electromagnetic beam transmission through deep periodic dielectric gratings is presented. In this method the beam is decomposed into a spectrum of plane waves, transmission coefficients correspondin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::974fbabd8e9f71eaf80c1ab7224024a4
https://pubmed.ncbi.nlm.nih.gov/26832012
https://pubmed.ncbi.nlm.nih.gov/26832012
Publikováno v:
SPIE Proceedings.
Imaging fiber bundles can relay a curved image surface to a conventional at focal plane, effectively providing the curved image sensor needed for some high performance lenses. If the fiber bundle period or image sensor pitch are very different, the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c58065ec7929a8495900e7d1ea02b82
https://doi.org/10.1117/12.2188925
https://doi.org/10.1117/12.2188925
Autor:
Ashkan Arianpour, Ilya P. Agurok, Igor Stamenov, Nojan Motamedi, Joseph E. Ford, Salman Karbasi, Chris LaReau, Rick L. Morrison, Ron A. Stack, Adam Johnson, Ryan Tenill
Publikováno v:
SPIE Proceedings.
Monocentric lenses allow high resolution panoramic cameras, where imaging fiber bundles transport the hemispherical image surface to conventional focal planes. Refraction at the curved image surface limits the field of view coupled through a single b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83c19bed5c176d29f6f24b2241d50d18
https://doi.org/10.1117/12.2188901
https://doi.org/10.1117/12.2188901
Autor:
Brad Giffel, Nojan Motamedi, Ilya P. Agurok, Ryan Tennill, Paulette Onorato, Emanuel Martin, Ron A. Stack, Jeremy Pessin, Rick L. Morrison, Salman Karbasi, Adam Johnson, Igor Stamenov, Joseph Mott, Ashkan Arianpour, Joseph E. Ford, Chris LaReau
Publikováno v:
Imaging and Applied Optics 2015.
We demonstrate a compact 127˚ field of view F/1.35 imager using a 12mm focal length monocentric lens coupled to a 25 Megapixel full-frame color CMOS sensor by the curved fibers from a 2.9µm pitch tapered fiber bundle.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24fb22605a8e69f56d42756006603ac8
https://doi.org/10.1364/isa.2015.ith1a.4
https://doi.org/10.1364/isa.2015.ith1a.4
Autor:
William M. Mellette, Ashkan Arianpour, Stephen J. Olivas, Nima Nikzad, Ilya P. Agurok, Rick L. Morrison, Michal Šorel, Ron A. Stack, Adam Johnson, Glenn M. Schuster, Igor Stamenov, Joseph E. Ford, Nojan Motamedi
Publikováno v:
SPIE Proceedings.
High resolution, wide field-of-view and large depth-of-focus imaging systems are greatly desired and have received much attention from researchers who seek to extend the capabilities of cameras. Monocentric lenses are superior in performance over oth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fea8468b0faf080d405c1e0384ba891
https://doi.org/10.1117/12.2062322
https://doi.org/10.1117/12.2062322
Autor:
Olivas, Stephen J, Sorel, Micha, Ashkan Arianpour, Stamenov, Igor, Nikzad, Nima, Schuster, Glenn M, Nojan Motamedi, Mellette, William M, Stack, Ron A, Johnson, Adam, Morrison, Rick, Agurok, Ilya P, Ford, Joseph E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07ce16ccc9ad497f70de88e64ddd9c71
Autor:
Ilya P. Agurok, Glenn M. Schuster, Stephen J. Olivas, Nojan Motamedi, Nima Nikzad, Ronald A. Stack, Rick L. Morrison, Joseph E. Ford, Adam Johnson, William M. Mellette, Igor Stamenov, Ashkan Arianpour
Publikováno v:
Classical Optics 2014.
We characterize the spatially variant transfer function of a fiber coupled monocentric lens imager, and show image processing techniques to reduce defects caused by the fiber bundle, improve image uniformity and increase spatial resolution.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e93492048c5165d56c2a03893f65ebd2
https://doi.org/10.1364/cosi.2014.cth1c.5
https://doi.org/10.1364/cosi.2014.cth1c.5
Publikováno v:
Classical Optics 2014.
Fiber-coupled focal planes allow detection of spherical image surfaces. We investigate the field of view possible with a single straight fiber bundle, demonstrating how the field can be extended by annular microprisms near the image surface.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ded201de20a9021beb2bf7cf6a257f4
https://doi.org/10.1364/iodc.2014.im2a.4
https://doi.org/10.1364/iodc.2014.im2a.4