Filter design of composite trade-off filter with support regions to obtain invariant pattern recognition with defocused images

Optics and Lasers in Engineering

Volumn 40, Issue 1-2, 2003, Pages 67-79

  Vargas, Asticio ^a   Campos, Juan ^b   Martin, Cesar San ^a   Vera, Nestor ^a  

^a UNIVERSIDAD DE LA FRONTERA   (Chile)

^b UNIVERSITAT AUTÒNOMA DE BARCELONA   (Spain)

Author keywords

Defocused images; Discrimination capability; Filter design; Image processing; Pattern recognition; SDFs filters; Sub band decomposition

Indexed keywords

FREQUENCIES; IMAGE PROCESSING; OPTICAL CORRELATION; OPTICAL FILTERS; ROBUSTNESS (CONTROL SYSTEMS);

DEFOCUSED IMAGES;

PATTERN RECOGNITION;

EID: 0037411561     PISSN: 01438166     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0143-8166(02)00059-3     Document Type: Conference Paper

References (15)

1. Hsu Y.N., Arsenault H.H. Pattern discrimination by multiple circular harmonic. Appl Opt. 21:1982;4016-4019.
2. Yu F.T.S., Zhou Yu Q., Zhang C. Multiple channel optical correlation via rotation grating on LCTV. Appl Opt. 27:1988;3770-3772.
3. 4 implementation of a two dimensional wavelet transform. Opt Eng. 31:1992;1859-1864.
4. Mendlovic D., Ouzieli T., Kiryuschev I., Marom E. Two dimensional wavelet transform achieved by computer-generated multireference matched filter and Damman grating. Appl Opt. 34:1995;8213-8219.
5. Vargas A., Campos J., Yzuel M.J., Iemmi C., Ledesma S. Optical codification for multiclass pattern recognition. Appl Opt. 37:1998;2063-2066.
6. Navaro R., Vargas A., Campos J. Invariant pattern recognition against defocus based on subband decomposition of the filter. J Opt A Pure Appl Opt. 1:1999;116-120.
7. Iemmi C., Ledesma S., Campos J., Villarreal M. Gray-level computer generated hologram filters for multiple-object correlation. Appl Opt. 39:2000;1233-1240.
8. Cheng S., Arsenauld H.H., García-Martinez P., Grover Ch.P. Invariant pattern recognition based on centroids. Appl Opt. 39:2000;6641-6648.
9. Vargas A., Campos J., Navarro R. Invariant pattern recognition against defocus based on subband decomposition of the filter. Opt Commun. 185:2000;33-44.
10. Vargas A., San Martin C., Figueroa R., Campos J., Yzuel M.J. Invariant pattern recognition with defocused images. SPIE Proc. 4419:2001;608-611.
11. Campos J., Bosch S., Sallent J. Optical pattern recognition in defocused images using correlation filters. Opt Commun. 82:1991;370-370.
12. Bosch S., Campos J., Montes-Usategui M. Design of correlation filter invariant to degradations characterizable by an optical transfer function. Opt Commun. 129:1996;337-343.
13. Vijaya Kumar B.V.K. Tutorial survey of composite filter designs for optical correlators. Appl Opt. 31:1992;4774-4801.
14. Vijaya Kumar B.V., Hassebrook L. Performance measure for correlation filters. Appl Opt. 29:1990;2997-3006.
15. Refrieger Ph. Optimal trade-off filter for noise robustness, sharpness of the correlation peaks, and Horner efficiency. Opt Lett. 16:1991;829-831.