Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Thomas P. Costello"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract The proliferation of anti-vaccination arguments online can threaten immunisation programmes, including those targeting COVID-19. To effectively refute misinformed views about vaccination, communicators need to go beyond providing correct inf
Externí odkaz:
https://doaj.org/article/c10af9aa8ea04fe397f07b8428419180
Publikováno v:
Frontiers in Psychology, Vol 9 (2018)
Despite widespread assumptions that psychopathy is associated with serious and repeated law-breaking, individuals with psychopathic personality traits do not invariably become chronic criminal offenders. As a partial explanation for this finding, Lyk
Externí odkaz:
https://doaj.org/article/f2e93f6dd8ea42d7a2662fd2f0717c58
Autor:
Wasfy B. Mikhael, Thomas P. Costello
Publikováno v:
Digital Signal Processing. 13:1-22
Digital images blurred by space-variant point-spread functions of uncorrected physical optics may be efficiently restored using Wiener filtering on overlapping subimage frames. Frame size must be tailored to accommodate the displacement-dependent spr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb5ec63097974df481a3b5c4343f2f75
https://doi.org/10.1016/s1051-2004(02)00004-0
https://doi.org/10.1016/s1051-2004(02)00004-0
Autor:
THOMAS P. COSTELLO, WASFY B. MIKHAEL
Publikováno v:
Journal of Circuits, Systems and Computers. 10:305-313
An analytical model is developed for the space-variant (SV) point-spread-function (PSF) of an undercorrected optical system with a rectangular aperture. The model accommodates broadening and shifting of the central lobe, as well as sidelobe asymmetry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71cef0928b2c0f610e02a0149acdcbe7
https://doi.org/10.1142/s0218126600000214
https://doi.org/10.1142/s0218126600000214
Autor:
Thomas P. Costello, Wasfy B. Mikhael
Publikováno v:
Visual Information Processing
Space-variant (SV) digital image restoration methods attempt to restore images degraded by blurs that vary over the image field. One specific source of SV blurs is that of geometrical optical aberrations, which divert light rays as they pass through
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::579e48041f42084bb78a0fd5d965cd2b
https://doi.org/10.1117/12.354693
https://doi.org/10.1117/12.354693
Publikováno v:
SPIE Proceedings.
The results of recent measurements of the intensity and phase fluctuations of one micron speckle propagating through a two kilometer (round-trip) turbulent path are presented. The data was collected at BMDO's Innovative Science and Technology Experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b17d7a371e29fd362224ddd264403eb1
https://doi.org/10.1117/12.211961
https://doi.org/10.1117/12.211961
Publikováno v:
SPIE Proceedings.
A theoretical model is presented for the mutual coherence function that describes the power spectrum of the intermediate frequency (IF) signal resulting from coherent laser radar detection of a fully illuminated rough rotating cylinder. Preliminary c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61248332457c32e1ae472f693214f31b
https://doi.org/10.1117/12.157102
https://doi.org/10.1117/12.157102
Autor:
Thomas P. Costello, John D. Schell
Publikováno v:
SPIE Proceedings.
Low voltage ferroelectric microdisplacement actuators are excellent candidates for use in zonal correction deformable mirrors (DMs) used in adaptive optical systems. Selection/specification is a critical process, however, since the device's electro-m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a86d7e022dd556dd7cbcd841b449891b
https://doi.org/10.1117/12.51191
https://doi.org/10.1117/12.51191
Publikováno v:
USA Today. 07/07/2020.
Autor:
Thomas P. Costello, Wasfy B. Mikhael
Publikováno v:
Computer Standards & Interfaces. 20:474
Defocused digital images may be effectively restored if the imaging system's optical transfer function (OTF) is known. In this paper, Wiener filtering based on known OTFs is applied to noisy, defocused images to characterize the conditions for useful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44a1ccd10fb8514321f6ab5d82d9765e
https://doi.org/10.1016/s0920-5489(99)91050-4
https://doi.org/10.1016/s0920-5489(99)91050-4