Zobrazeno 1 - 7
of 7
pro vyhledávání: '"E N Hogert"'
Autor:
E. N. Hogert, M. R. Landau, M. F. Ruiz Gale, J. Marengo, N. G. Gaggioli, R. Dias Paiva, D. Soga, M. Muramatsu
Publikováno v:
Emerging Technologies in NDT ISBN: 9781003078586
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49feecfb6449e9c5f643d0072b920846
https://doi.org/10.1201/9781003078586-7
https://doi.org/10.1201/9781003078586-7
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 45:263-265
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f18214db342fda8ba493f70bfcef1acd
https://doi.org/10.1784/insi.45.4.263.54444
https://doi.org/10.1784/insi.45.4.263.54444
Publikováno v:
Journal of Optics. 25:105-110
The pin-hole camera may be used for de-screening screened pictures and for extracting an object among many other codified ones. Thus the PHC is also a good system for optical processing. Theoretical analysis and experimental results are presented in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f469322523be01c7bda0fbf7c15a7f35
https://doi.org/10.1088/0150-536x/25/3/003
https://doi.org/10.1088/0150-536x/25/3/003
Publikováno v:
Applied optics. 28(4)
A simple visual method is described which is based on the direct analysis of speckle pattern movement. It permits aligning a transparent diffuser, placing its rotation axis on the mean plane of the rough surface and simultaneously determining the opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91f11741291a3060a29c39be94284807
https://pubmed.ncbi.nlm.nih.gov/20548549
https://pubmed.ncbi.nlm.nih.gov/20548549
Publikováno v:
Optica Acta: International Journal of Optics. 31:1017-1026
Directional filtering by astigmatism is used to enhance the observation of sonograms when the signal-to-noise ratio is poor. To explain and quantify the filter effect, a stochastic model, applicable to other textures, is designed and verified. Since
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c44ebf7a12719baf8193a3a9e4235f29
https://doi.org/10.1080/713821602
https://doi.org/10.1080/713821602
Autor:
E N Hogert, N G Gaggioli
Publikováno v:
Journal of Optics. 17:203-207
A very simple method for the determination of a surface inclination is presented. The method is based on the direct analysis of the photographic record of two speckle-patterns produced by the diffusing surface, when illuminated by a single wavelength
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89d59408445e04b271a575a5a433184a
https://doi.org/10.1088/0150-536x/17/4/006
https://doi.org/10.1088/0150-536x/17/4/006
Publikováno v:
SPIE Proceedings.
The absolute measurement of the intensity correlation of a speckle pattern was previously demonstrated by using a photographic real-time technique (1). In this paper we demonstrate its use for the measurement of surface roughness in the 1-30,μm rang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::417a9bb9c5cee993794cf6f9febfe2bc
https://doi.org/10.1117/12.967396
https://doi.org/10.1117/12.967396