Zobrazeno 1 - 10
of 10
pro vyhledávání: '"F. Wilhelm Leuschner"'
Publikováno v:
Intelligent Robots and Computer Vision XXVII: Algorithms and Techniques.
Most current lens distortion models use only a few terms of Brown's model, which assumes that the radial distortion is dependant only on the distance from the distortion centre, and an additive tangential distortion can be used to correct lens de-cen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0fb5e32df0263ca3e8107a8ed677a82
https://doi.org/10.1117/12.838804
https://doi.org/10.1117/12.838804
Publikováno v:
SPIE Proceedings.
Inverse distortion is used to create an undistorted image from a distorted image. For each pixel in the undistorted image it is required to determine which pixel in the distorted image should be used. However the process of characterizing a lens usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2239bb22a0f0ab0bd011ffa71737ace0
https://doi.org/10.1117/12.804771
https://doi.org/10.1117/12.804771
Publikováno v:
SPIE Proceedings.
INVESTIGATIONINTOTHEUSEOFAPERSONALCOMPUTERFORGENERATINGREAL-TIMEINFRAREDIMAGERYF. P.J.le Rouxa,F.G.CollinbandF.W.Leuschnerca+bCSIR,PO Box395, Pretoria,0001, SouthAfricacDept of Electrical, Electronic &Computer Engineering, Universityof Pretoria,Preto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a271ce94e574c3092e4e742e53472967
https://doi.org/10.1117/12.438093
https://doi.org/10.1117/12.438093
Publikováno v:
SPIE Proceedings.
Use of liquid crystal display technology for ocular prosthesis was recently proposed. Liquid crystal light valves are used for the purpose of light modulation to control pupil size proportional to incident light intensity. In the current study two di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22246695f94968a423978137a692b150
https://doi.org/10.1117/12.207502
https://doi.org/10.1117/12.207502
Publikováno v:
SPIE Proceedings.
For this research the spectral optical characteristics (diffuse spectral reflectance and transmittance) for a number of human teeth were measured in the 250 to 1500 nm region of the electromagnetic spectrum. From the reflectance and transmittance of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::583cd8635f546612638603ca29f69532
https://doi.org/10.1117/12.199210
https://doi.org/10.1117/12.199210
Autor:
F Wilhelm Leuschner, Ela Johannsen
This chapter elaborates the bioluminescence-based sensor for the detection of pesticides. A biosensor based on measurements of the intensity of bioluminescence was developed. The bioluminescence is produced by Vibrio fischeri ATCC 7744 and the transd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a99e3e78eb8d816d591efb413829151d
https://doi.org/10.1016/b978-1-85617-242-4.50036-7
https://doi.org/10.1016/b978-1-85617-242-4.50036-7
Autor:
F. Wilhelm Leuschner
Publikováno v:
Ophthalmic Technologies II.
South AfricaABSTRACTOcular prosthesis requires great skill in craftsmanship and technology to match the appearance of the natural eye forcosmetic reasons. All the effort and cost going into the prosthesis is neutralised by the effect of a fixed pupil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::818e1abfb8b321756c38eabd9d1b0f3e
https://doi.org/10.1117/12.137438
https://doi.org/10.1117/12.137438
Autor:
Johannes D. Roux, F. Wilhelm Leuschner
Publikováno v:
Optical Computing.
Many architectures that perform digital optical logic have been proposed and built. Most of them use intensity-encoded logic where, for example, the presence of light would indicate logical true and the absence of light logical false. This way of enc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa3ffd20173296ba906d36bcc14f4837
https://doi.org/10.1364/optcomp.1989.tui13
https://doi.org/10.1364/optcomp.1989.tui13
Autor:
Bhosale, Surendra, Sarwade, Nisha
Publikováno v:
International Review on Computers & Software; Jul2013, Vol. 8 Issue 7, p1578-1586, 9p