Resultados globales: 4 registros encontrados en 0.01 segundos.
Artículos, Encontrados 4 registros
Artículos Encontrados 4 registros  
1.
3 p, 93.3 KB Integration in the Fourier domain for restoration of a function from its slope : comparison of four methods / Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física) ; Yaroslavsky, Leonid P. (Tel Aviv University. Department of Interdisciplinary Studies) ; Moreno Soriano, Alfonso (Universitat Autònoma de Barcelona. Departament de Física) ; Yzuel Giménez, María Josefa (Universitat Autònoma de Barcelona. Departament de Física)
In some measurement techniques the profile, f(x), of a function should be obtained from the data on measured slope f'(x) by integration. The slope is measured in a given set of points, and from these data we should obtain the profile with the highest possible accuracy. [...]
2002 - 10.1364/OL.27.001986
Optics letters, Vol. 27, No. 22 (15 November 2002) , p. 1986-1988  
2.
3 p, 481.8 KB Input-image homogenization as a method to improve a correlator's discrimination capability / Yaroslavsky, Leonid P. (Tel Aviv University. Department of Interdisciplinary Studies) ; López Coronado, Octavio (Universitat Autònoma de Barcelona. Departament de Física) ; Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física)
We propose an input-image preprocessing method consisting of homogenization of the image to improve the discrimination capability of a correlation-based recognition process. This method is an approximation of the optimal filter. [...]
1998 - 10.1364/OL.23.001129
Optics letters, Vol. 23, No. 14 (15 July 1998) , p. 1129-1131  
3.
3 p, 1016.2 KB Color pattern recognition with circular component whitening / Moreno Soriano, Ignacio (Universitat Autònoma de Barcelona. Departament de Física) ; Kober, Vitaly (Universitat Autònoma de Barcelona. Departament de Física) ; Lashin, Vladimir (Universitat Autònoma de Barcelona. Departament de Física) ; Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física) ; Yaroslavsky, Leonid P. (Tel Aviv University. Department of Interdisciplinary Studies) ; Yzuel Giménez, María Josefa (Universitat Autònoma de Barcelona. Departament de Física)
Polychromatic object recognition based on circular whitening preprocessing of red–green–blue components and multichannel matched filtering is described. Computer simulations and experimental results are provided to facilitate recognizing a color target among objects of similar shape but with different color contents. [...]
1996 - 10.1364/OL.21.000498
Optics letters, Vol. 21, No. 7 (1 April 1996) , p. 498-500  
4.
3 p, 463.8 KB Optimal filter approximation by means of a phase-only filter with quantization / Kober, Vitaly (Universitat Autònoma de Barcelona. Departament de Física) ; Yaroslavsky, Leonid P. (National Institutes of Health (Bethesda, Estats Units d'Amèrica)) ; Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física) ; Yzuel Giménez, María Josefa (Universitat Autònoma de Barcelona. Departament de Física)
Approximate filters based on a phase-only filter for reliable recognition of objects are proposed. Good light efficiency and discrimination capability close to that of the optimal filter can be obtained. [...]
1994 - 10.1364/OL.19.000978
Optics letters, Vol. 19, No. 13 (1 July 1994) , p. 978-980  

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