Invariant pattern recognition with defocused images

A. Vargas; Cesar San Martin; Rodolfo Figueroa; Juan Campos; Maria Josefa Yzuel

doi:10.1117/12.437191

14 August 2001 Invariant pattern recognition with defocused images

A. Vargas, Cesar San Martin, Rodolfo Figueroa, Juan Campos, Maria Josefa Yzuel

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437191
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

A methodology to obtain an invariant pattern recognition process when the input images are defocused is presented. Our method combines a multi-channel decomposition of the input scene and a usual correlation process to obtain several information channels. The information of the channels can be analyzed channel by channel or by means of a combination of them. In all the cases, the Discrimination Capability criterion is calculated and we see that the multi-channel procedure is more stable against defocus than the mono-channel one.

Citation Download Citation

A. Vargas, Cesar San Martin, Rodolfo Figueroa, Juan Campos, and Maria Josefa Yzuel "Invariant pattern recognition with defocused images", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437191

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