Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Enrique González-Amador"'
Publikováno v:
Springer Proceedings in Physics ISBN: 9789811592584
Wavefront-coding is a technique in imaging systems that uses signal processing as an integral part of the image capture. In addition, wavefront-coded imaging uses phase elements that must be designed specifically for each application. This combinatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fec1591d5c07fa61caa2965f0fb9459
https://doi.org/10.1007/978-981-15-9259-1_5
https://doi.org/10.1007/978-981-15-9259-1_5
Autor:
Justo Arines, Eva Acosta, Enrique González-Amador, Miguel Olvera-Angeles, Jim Schwiegerling, Jose Sasian
Publikováno v:
Applied optics. 59(22)
Wavefront coding is a technique that combines optical phase elements and digital signal processing in order to increase the effective depth of focus of optical systems. The success of wavefront coding lies in the design of a suitable phase mask place
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::618af1e2bcfd5b96b884be7f7d93140c
https://pubmed.ncbi.nlm.nih.gov/32749338
https://pubmed.ncbi.nlm.nih.gov/32749338
Autor:
Alfonso Padilla-Vivanco, Justo Arines, Carina Toxqui-Quitl, Eva Acosta, Enrique González-Amador
Publikováno v:
Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
instname
Minerva: Repositorio Institucional de la Universidad de Santiago de Compostela
Universidad de Santiago de Compostela (USC)
instname
Minerva: Repositorio Institucional de la Universidad de Santiago de Compostela
Universidad de Santiago de Compostela (USC)
In this work we propose Jacobi–Fourier phase masks for wavefront coding-based imaging systems. The optical properties of the phase mask is study in detail and numerical simulation are shown. Pixel size and noise are taken into account for the decon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e2f0f96c7ff7ac88ddd8950288d4d7c
http://hdl.handle.net/10347/24805
http://hdl.handle.net/10347/24805
Publikováno v:
2019 24th Microoptics Conference (MOC).
Jacoby Fourier polynomial shaped phase masks (JFPM) have been shown to be potentially effective for extending the depth of focus in wavefront coding technique. However, some characteristics have not been reported in detail. Here, we will show perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72a50c4d8222fa3323f47212cc7c51b2
https://doi.org/10.23919/moc46630.2019.8982880
https://doi.org/10.23919/moc46630.2019.8982880
Autor:
Jose Sasian, Jim Schwiegerling, Enrique González-Amador, Eva Acosta, Miguel Olvera-Angeles, Justo Arines
Publikováno v:
2019 24th Microoptics Conference (MOC).
Wavefront Coding is a technique using generalized aspheric optics and digital signal processing to greatly increase the depth of field of imaging systems. In this work we propose the use of Jacobi-Fourier shaped phase masks to produce sharp and clear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::125f6dcea8260bdd82112b87375f6a73
https://doi.org/10.23919/moc46630.2019.8982760
https://doi.org/10.23919/moc46630.2019.8982760
Autor:
Justo Arines, Enrique González-Amador, Miguel Olvera-Angeles, Eva Acosta, Carina Toxqui-Quitl, Alfonso Padilla-Vivanco
Publikováno v:
Current Developments in Lens Design and Optical Engineering XX.
Wavefront coding is a hybrid optical-computational technique that makes use of a phase modulating element in conjunction with a deconvolution algorithm to extend the depth of focus of imaging systems. The phase mask codes the wave-front in such a way
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5fc63098ad47d908f0d39d464515bd1
https://doi.org/10.1117/12.2523611
https://doi.org/10.1117/12.2523611
Autor:
Eva Acosta, Justo Arines, Jose Sasian, Jim Schwiegerling, Miguel Olvera-Angeles, Enrique González-Amador
Publikováno v:
Japanese Journal of Applied Physics. 59:SOOD07
Wavefront coding is a hybrid optical-digital technique proposed to increase the effective depth of focus of optical systems. The key to wavefront coding lies in the design of a suitable phase mask placed at the system's aperture to achieve the invari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c66a8c912c76e41ab3615fde587b0cc
https://doi.org/10.35848/1347-4065/ab9997
https://doi.org/10.35848/1347-4065/ab9997
Autor:
Justo Arines, Eva Acosta, Alfonso Padilla-Vivanco, Miguel Olvera-Angeles, Enrique González-Amador
Publikováno v:
Japanese Journal of Applied Physics. 59:SOOD04
Wavefront coding is an optical-digital technique that consists in introducing a suitable phase mask in the aperture plane able to extent, after image processing, the depth of field of an optical system. The key to wavefront coding lies in the shape o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b0a447e7b82993cd9ab7ef7e44284ce
https://doi.org/10.35848/1347-4065/ab9652
https://doi.org/10.35848/1347-4065/ab9652
Publikováno v:
Current Developments in Lens Design and Optical Engineering XVIII.
Wavefront Coding (WFC) systems make use of an aspheric Phase-Mask (PM) and digital image processing to extend the Depth of Field (EDoF) of computational imaging systems. For years, several kinds of PM have been designed to produce a point spread func
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4f98d5b5a24b19aca4de925a9b1ca22
https://doi.org/10.1117/12.2273063
https://doi.org/10.1117/12.2273063
Autor:
Enrique Gonzalez-Amador, Justo Arines, Pablo Charlón, Nery Garcia-Porta, Maximino J. Abraldes, Eva Acosta
Publikováno v:
Photonics, Vol 9, Iss 4, p 251 (2022)
Eye fundus images are used in clinical diagnosis for the detection and assessment of retinal disorders. When retinal images are degraded by scattering due to opacities of the eye tissues, the precise detection of abnormalities is complicated dependin
Externí odkaz:
https://doaj.org/article/c521ac8f0bc6456492f892171bff7710