Zobrazeno 1 - 10
of 425
pro vyhledávání: '"H. H. Arsenault"'
Publikováno v:
Review of Scientific Instruments. 72:869-872
Neutron penumbral imaging technique has been demonstrated at the Lawrence Livermore National Laboratory and has been used at CEA (France) to image inertial confinement fusion cores. The information contained in a penumbral image is degraded by the ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a3ed3dfaff5b526560391686d28cc9c
https://doi.org/10.1063/1.1326898
https://doi.org/10.1063/1.1326898
Publikováno v:
Pure and Applied Optics: Journal of the European Optical Society Part A. 4:709-721
A new method for the recognition of tridimensional faces is introduced. For each face, the distribution of the normals is computed by means of the phase Fourier transform which is defined as the Fourier transform of the phase of the range image. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4481c28dea54b0116150917c37837880
https://doi.org/10.1088/0963-9659/4/6/003
https://doi.org/10.1088/0963-9659/4/6/003
Publikováno v:
Applied optics. 30(32)
In our previous paper we proposed using successively binary cosine and sine filters and combining the correlation intensities for rotation-invariant phase-only circular harmonic correlation. This paper presents an alternative method that uses a singl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99b2233e8b697c75dad0e7015f182d3d
https://pubmed.ncbi.nlm.nih.gov/20717264
https://pubmed.ncbi.nlm.nih.gov/20717264
Autor:
H. H. Arsenault, Habib Hamam
Publikováno v:
Applied optics. 36(29)
We present a new technique for information processing using Fresnel transform-based correlation. The main emphasis is on the design of a correlator involving the reference object and its near-field diffraction pattern at an optimized distance. The in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b5b1353d9b57fc8655fbc1869881602
https://pubmed.ncbi.nlm.nih.gov/18264249
https://pubmed.ncbi.nlm.nih.gov/18264249
Autor:
H. H. Arsenault
Publikováno v:
16th Congress of the International Commission for Optics: Optics as a Key to High Technology.
Optics has increasingly been used to improve the performance of computing systems. This is most evident in the field of optical interconnects, but the advent of new devices like micro laser arrays, SEED devices and other components that allow the exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1942a0f85fb40c17c174bbed6e5017da
https://doi.org/10.1117/12.2308565
https://doi.org/10.1117/12.2308565
Publikováno v:
SPIE Proceedings.
This paper reviews recent progress in rotation invariant pattern recognition; the emphasis is on the work done in our own laboratories, since much of the significant work done elsewhere is described in other papers presented at this conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aefd562901696fdd2927d5263b1fe49
https://doi.org/10.1117/12.59849
https://doi.org/10.1117/12.59849
Autor:
H. H. Arsenault, O. Gualdrón
Publikováno v:
Applied Optics. 35:2507
We introduce an optimum matched filter for rotation-invariant pattern recognition in scenes with disjoint noise. The optimum filter maximizes the ratio between the correlation-peak intensity and the correlation-output energy; in order to ensure rotat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13db375d00cbe4d977aa89c822c8e154
https://doi.org/10.1364/ao.35.002507
https://doi.org/10.1364/ao.35.002507
Autor:
H. H. Arsenault, P. Marmet
Publikováno v:
Review of Scientific Instruments. 48:512-516
The useful data from experiments are sometimes superimposed on a large‐amplitude, slowly changing continuum that masks the information of interest. Techniques for extracting the information are analyzed and compared. We show that the processing com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4802d9e0aa1037f78e3826e5300581ef
https://doi.org/10.1063/1.1135064
https://doi.org/10.1063/1.1135064
Autor:
Maurice K. Seguin, H. H. Arsenault
Publikováno v:
Pure and Applied Geophysics PAGEOPH. 114:663-683
An optical processor has been used to filter ground and aeromagnetic or gravimetric maps in order to obtain information on magnetic or causative bodies buried in the ground. This is accomplished by directional filtering in the Fourier spectrum of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7aa417bd8757e271e9b3adf7fb92979
https://doi.org/10.1007/bf00875660
https://doi.org/10.1007/bf00875660
Autor:
H H Arsenault, B Macukow
Publikováno v:
Journal of Optics. 15:145-151
The matrix theory for nonsymmetrical optical systems is extended to cylindrical diopters, thick cylindrical lenses, thick cylindrical doublets, cylindrical mirrors and non-symmetrical resonators.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::044d7b4588183ecd9b2e28b703449f44
https://doi.org/10.1088/0150-536x/15/3/003
https://doi.org/10.1088/0150-536x/15/3/003