Artículo
Iemmi, C.; Ledesma, S.; Campos, J.; Villarreal, M. "Gray-level computer-generated hologram filters for multiple-object correlation" (2000) Applied Optics. 39(8):1233-1240
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Abstract:
Synthesis of gray-level computer-generated holograms allows for an increase of the information storage capability that is usually achieved with conventional binary filters. This is mainly because more degrees of freedom are available. We propose to profit from this feature by synthesizing complex filters formed by many superimposed holograms, each with a different carrier frequency. We apply these gray-level filters to perform multichannel correlation and in this way enhance the capability of optical correlators to process the information in parallel and simultaneously. First, we analyze the behavior of some performance criteria on the impulse response and on the correlation as a function of the number of holograms that are multiplexed. Then we show the results of two experiments: In the first a composed phase-only filter is used in a multiple-object recognition process. In the second a composed synthetic discriminant function filter is used to implement an object classification by means of a binary code. © 2000 Optical Society of America.
Registro:
| Documento: | Artículo |
| Título: | Gray-level computer-generated hologram filters for multiple-object correlation |
| Autor: | Iemmi, C.; Ledesma, S.; Campos, J.; Villarreal, M. |
| Filiación: | Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Cuidad Universitaria, Buenos Aires, 1428, Argentina Grupo de Optica, Universidad Autónoma de Barcelona, Bellaterra, E-08193, Spain |
| Palabras clave: | Binary codes; Data storage equipment; Degrees of freedom (mechanics); Impulse response; Object recognition; Optical filters; Multiple-object correlation; Holograms |
| Año: | 2000 |
| Volumen: | 39 |
| Número: | 8 |
| Página de inicio: | 1233 |
| Página de fin: | 1240 |
| DOI: | http://dx.doi.org/10.1364/AO.39.001233 |
| Título revista: | Applied Optics |
| Título revista abreviado: | Appl. Opt. |
| ISSN: | 1559128X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1559128X_v39_n8_p1233_Iemmi |
Referencias:
- Casasent, D., Unified synthetic discriminant function computational formulation (1984) Appl. Opt., 23, pp. 1620-1627
- Casasent, D., Chang, W.T., Correlation synthetic discriminant functions (1986) Appl. Opt., 25, pp. 2343-2350
- Vijaya Kumar, B.V.K., Tutorial survey of composite filter designs for optical correlators (1992) Appl. Opt., 31, pp. 4773-4801
- Montes-Usategui, M., Campos, J., Juvells, I., Computation of arbitrarily constrained synthetic discriminant functions (1995) Appl. Opt., 34, pp. 3904-3914
- Arnold, S.M., Electron beam fabrication of computer generated holograms (1985) Opt. Eng., 24, pp. 803-807
- Emerton, N., Smith, R.W., Canas, R.G., Blazed surface relief diffractive optical elements (1987) Holographic Systems Components and Applications, IERE Conf. Proc, 76, pp. 99-103. , Cambridge University, Cambridge, UK
- Urquhart, K.S., Stein, R., Lee, S.H., Computer generated holograms fabricated by direct write of positive electron beam resist (1993) Opt. Lett., 18, pp. 308-310
- Brown, B.R., Lohmann, A.W., Complex spatial filtering with binary masks (1966) Appl. Opt., 5, pp. 967-969
- Lee, W.H., Sampled Fourier transform hologram generated by computer (1970) Appl. Opt., 9, pp. 639-643
- Lee, W.H., Binary synthetic holograms (1974) Appl. Opt., 13, pp. 1677-1682
- Lee, A.J., Casasent, P., Computer generated hologram recording using a laser printer (1987) Appl. Opt., 26, pp. 136-138
- O’Shea, D.C., Beletic, J.W., Poutus, M., Binary-mask generation for diffractive optical elements using microcomputers (1993) Appl. Opt., 32, pp. 2566-2572
- Karckhard, U., Schwider, J., Schrader, M., Streibl, N., Synthetic holograms written by a laser pattern generator (1993) Opt. Eng., 32, pp. 781-785
- Moreno, I., Gorecki, C., Campos, J., Yzuel, M.J., Comparison of computer generated holograms produced by laser printers and lithography: Application to pattern recognition (1995) Opt. Eng., 34, pp. 3520-3525
- Burch, J.J., A computer algorithm for the synthesis of spatial frequency filters (1967) Proc. IEEE, 55, pp. 599-600
- Horner, J.L., Gianino, P.D., Phase-only matched filtering (1984) Appl. Opt., 23, pp. 812-816
- Bernhardt, M., Wyrowski, F., Bryngdahl, O., Iterative techniques to integrate different optical functions in a diffractive phase element (1991) Appl. Opt., 30, pp. 4629-4635
Citas:
---------- APA ----------
Iemmi, C., Ledesma, S., Campos, J. & Villarreal, M. (2000) . Gray-level computer-generated hologram filters for multiple-object correlation. Applied Optics, 39(8), 1233-1240.http://dx.doi.org/10.1364/AO.39.001233
---------- CHICAGO ----------
Iemmi, C., Ledesma, S., Campos, J., Villarreal, M. "Gray-level computer-generated hologram filters for multiple-object correlation" . Applied Optics 39, no. 8 (2000) : 1233-1240.http://dx.doi.org/10.1364/AO.39.001233
---------- MLA ----------
Iemmi, C., Ledesma, S., Campos, J., Villarreal, M. "Gray-level computer-generated hologram filters for multiple-object correlation" . Applied Optics, vol. 39, no. 8, 2000, pp. 1233-1240.http://dx.doi.org/10.1364/AO.39.001233
---------- VANCOUVER ----------
Iemmi, C., Ledesma, S., Campos, J., Villarreal, M. Gray-level computer-generated hologram filters for multiple-object correlation. Appl. Opt. 2000;39(8):1233-1240.http://dx.doi.org/10.1364/AO.39.001233
