Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Munther A. Gdeisat"'
Publikováno v:
Optics and Lasers in Engineering
© 2015 Elsevier Ltd. All rights reserved. In this paper, we present a novel algorithm to reduce the number of phase wraps in two dimensional signals in fringe projection profilometry. The technique operates in the spatial domain, and achieves a sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f0912eacb61480c42ce38b295720a60
https://doi.org/10.1016/j.optlaseng.2015.11.009
https://doi.org/10.1016/j.optlaseng.2015.11.009
Autor:
Miguel Arevalillo-Herráez, Francis Lilley, Munther A. Gdeisat, Marwan M. M. Ammous, David R. Burton
Publikováno v:
Applied Optics
In phase unwrapping residues are points of locally inconsistent phase that occur within a wrapped-phase map, which are usually regarded as being problematic for phase-unwrapping algorithms. Real phase maps typically contain a number of residues that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1206e5f78ed92285a16e4a263e09e66
https://pubmed.ncbi.nlm.nih.gov/26836663
https://pubmed.ncbi.nlm.nih.gov/26836663
Publikováno v:
Optics Communications. 284:5105-5109
In this paper, we propose a simple method for processing a 2D wrapped phase map that contains a spatial carrier signal in order to completely eliminate, or greatly reduce, the number of phase wraps in the image. The 2D Fourier transform of the wrappe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01ef50e5ef224f15d529b4a108450b4d
https://doi.org/10.1016/j.optcom.2011.07.024
https://doi.org/10.1016/j.optcom.2011.07.024
Publikováno v:
Optics Communications. 284:2797-2807
Fringe pattern analysis in coded structured light constitutes an active field of research. Techniques based on first projecting a sinusoidal pattern and then recovering the phase deviation permit the computation of the phase map and its corresponding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86fa1697d2b2e5080317e4ba3318329d
https://doi.org/10.1016/j.optcom.2011.01.068
https://doi.org/10.1016/j.optcom.2011.01.068
Autor:
Francis Lilley, Michael J. Lalor, Abdulbasit Z. Abid, Mohammed Qudeisat, Christopher J Moore, David R. Burton, Munther A. Gdeisat
Publikováno v:
Optics and Lasers in Engineering. 47:1348-1361
This paper presents a thorough discussion on the application of the one-dimensional continuous wavelet transform (1D-CWT) in order to retrieve phase information in temporally and spatially tilted fringe patterns and highlights recent progress and cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7806aca44db069f5815972cb3a00879c
https://doi.org/10.1016/j.optlaseng.2009.07.009
https://doi.org/10.1016/j.optlaseng.2009.07.009
Autor:
Francis Lilley, Hussein S. Abdul-Rahman, Abdulbasit Z. Abid, Michael J. Lalor, David R. Burton, Munther A. Gdeisat
Publikováno v:
Optics and Lasers in Engineering. 46:446-455
Over the years two-dimensional Fourier Fringe Analysis (2D-FFA) has demonstrated both its capability and its relative robustness in analysing fringe patterns within a short time-frame from static objects. Nowadays, there is an increasing demand to me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1f32f6624b18c4b5e3ac86ff9ae5743
https://doi.org/10.1016/j.optlaseng.2008.01.004
https://doi.org/10.1016/j.optlaseng.2008.01.004
Publikováno v:
Optics Communications. 266:482-489
In this paper, a filtering technique based upon two-dimensional continuous wavelet transform (2D-CWT) is used to eliminate the low frequency components of fringe patterns. The filtered fringe patterns are subsequently demodulated using a standard Fou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1559bacac0da1ca1bbddb080fd0fe718
https://doi.org/10.1016/j.optcom.2006.05.070
https://doi.org/10.1016/j.optcom.2006.05.070
Publikováno v:
Optics and Lasers in Engineering. 43:767-775
A novel technique called an iterative linear digital phase locked loop (DPLL) for fringe-pattern demodulation is presented. The proposed technique has better noise immunity than the basic one-dimensional DPLL algorithms (e.g., conventional and linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7c337302c6e77327538bb02f37df910
https://doi.org/10.1016/j.optlaseng.2004.08.006
https://doi.org/10.1016/j.optlaseng.2004.08.006
Publikováno v:
ICAC
The Atomic Force Microscope using contact mode forms the image by contacting the sample surface with a sharp tip that is attached to the free end of a cantilever. While the sample is scanned horizontally the cantilever deflects. The deflection of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae11dbcb8c1bb85e03d18c3223009238
https://doi.org/10.1109/iconac.2014.6935500
https://doi.org/10.1109/iconac.2014.6935500
Publikováno v:
Measurement Science and Technology. 11:1480-1492
A new technique for fringe pattern demodulation using a linear digital phase locked loop (DPLL) is presented. The phase components of a fringe pattern are calculated using a way similar to the Fourier fringe analysis technique and a wrapped phase map
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c78eaca3b6835b5b4b73a220446e0ee
https://doi.org/10.1088/0957-0233/11/10/309
https://doi.org/10.1088/0957-0233/11/10/309