Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Nickolai R. Belashenkov"'
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 19, Iss 6, Pp 1004-1012 (2019)
Subject of Research. The paper presents research of image restoration quality decrease for the super-resolution structured illumination microscopy in case of defocus and aberrations affecting resulting image. Method. In order to improve restoration i
Externí odkaz:
https://doaj.org/article/fcca8c66efe4423284253d53538ee647
Autor:
Vitaly V. Bezzubik, Nickolai R. Belashenkov, Gleb V. Vdovin, Nikolai S. Karmanovsky, Oleg A. Soloviev
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 14, Iss 6, Pp 82-90 (2014)
We have proposed and tested a novel method for digital image sharpening. The method is based on multi-scale image analysis, calculation of differential responses of image brightness in different spatial scales, and the subsequent calculation of a r
Externí odkaz:
https://doaj.org/article/c7d3ea3fabc44901bd58607e3369b704
Publikováno v:
Optics Letters. 45:972
In this Letter, we report on an algorithm and its implementation to reconstruct the wavefront as a continuous function from a bitmap image of the Hartmann–Shack pattern. The approach works with arbitrary raster geometry and does not require explici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2f91bd42af577a3948c6d7ea4fc8113
https://doi.org/10.1364/ol.383464
https://doi.org/10.1364/ol.383464
Publikováno v:
SPIE Proceedings.
Difference of Circs (DoC) model allowing to simulate the response of neurons – ganglion cells as a reaction to stimuli is represented and studied in relation with representation of receptive fields of human retina. According to this model the respo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e045a1d2da34cf6717b19ebd4df262cd
https://doi.org/10.1117/12.2228176
https://doi.org/10.1117/12.2228176
Publikováno v:
SPIE Proceedings.
A robust method of creation of panoramic images which does not consume much processing resources is proposed and investigated. The phase correlation (PC) method is taken as a basic one because of simplicity of its algorithm and low computing time due
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2500a4e62bd770e4a3534556bde76970
https://doi.org/10.1117/12.2218570
https://doi.org/10.1117/12.2218570
Autor:
Anatoly A. Solounin, Leonid I. Akopov, Nickolai R. Belashenkov, Nikolai N. Bondarev, Ella V. Shalygina
Publikováno v:
SPIE Proceedings.
Optical model of a human tooth enamel surface and results of numerical calculations of a coherent gaussian beam scattering on enamel surface are represented. The experimental set-up for complex investigations of optical properties of hard tooth tissu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd85dc871eada9c58fdce6e70cd78638
https://doi.org/10.1117/12.341422
https://doi.org/10.1117/12.341422
Autor:
Sergei L. Studenikin, Nickolai R. Belashenkov, Anatoly A. Solounin, Ella V. Shalygina, Nikolai N. Bondarev, Leonid I. Akopov
Publikováno v:
SPIE Proceedings.
Optical model of a human tooth enamel surface and results of numerical calculations of a coherent Gaussian beam scattering on enamel surface are represented. The experimental set-up for complex investigations of optical properties of hard tooth tissu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a37227988ec5daeefd4274165068d31
https://doi.org/10.1117/12.339167
https://doi.org/10.1117/12.339167
Autor:
Sergei A. Kozlov, Sergey Vladimorovich Egorov, Danil A. Kirsanov, V. B. Karasev, Nickolai R. Belashenkov, Vitali V. Bezzubik
Publikováno v:
SPIE Proceedings.
In the present paper the laser beams with Cartesian symmetry having the minimum diffraction divergence in near and far fields are synthesized. The spatial sizes of these beams in near field as well as the angular size in far field have been defined o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4faecac80275ce7a4b4768512202415e
https://doi.org/10.1117/12.271776
https://doi.org/10.1117/12.271776
Autor:
Valery Yu. Khramov, L. V. Khloponin, Gregory B. Altshuler, V. B. Karasev, Nickolai R. Belashenkov
Publikováno v:
SPIE Proceedings.
In the present work some results of work carried out in LASER CENTER of St. Petersburg State Institute of Fine Mechanics and Optics are represented. This R and D work has been aimed on creation of powerful flash-lamp pumped solid- state lasers with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d59a6cfe43f9ad9bbf19ec5ece39ee71
https://doi.org/10.1117/12.258358
https://doi.org/10.1117/12.258358
Publikováno v:
CIS Selected Papers: Coherence-Domain Methods in Biomedical Optics.
The theoretical model of coherent light scattering on enamel and dentin surface is described. The surfaces of hard tooth tissues are represented as 3D rough structures. The enamel components are assumed to form mosaic structure consisting of enamel p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ca90a8d76e58f61325ef96a8e629a89
https://doi.org/10.1117/12.231677
https://doi.org/10.1117/12.231677