Sensor for Distance Estimation Using FFT of Images

In this paper, the problem of how to estimate the distance between an infrared emitter diode (IRED) and a camera from pixel grey-level intensities is examined from a practical standpoint. Magnitudes that affect grey level intensity were defined and related to the zero frequency component from the FF...

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Detalles Bibliográficos
Autores principales: Lázaro, José L., Cano, Angel E., Fernández, Pedro R., Luna, Carlos A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2009
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267231/
https://www.ncbi.nlm.nih.gov/pubmed/22303183
http://dx.doi.org/10.3390/s91210434
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author Lázaro, José L.
Cano, Angel E.
Fernández, Pedro R.
Luna, Carlos A.
author_facet Lázaro, José L.
Cano, Angel E.
Fernández, Pedro R.
Luna, Carlos A.
author_sort Lázaro, José L.
collection PubMed
description In this paper, the problem of how to estimate the distance between an infrared emitter diode (IRED) and a camera from pixel grey-level intensities is examined from a practical standpoint. Magnitudes that affect grey level intensity were defined and related to the zero frequency component from the FFT image. A general model was also described and tested for distance estimation over the range from 420 to 800 cm using a differential methodology. Method accuracy is over 3%.
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spelling pubmed-32672312012-02-02 Sensor for Distance Estimation Using FFT of Images Lázaro, José L. Cano, Angel E. Fernández, Pedro R. Luna, Carlos A. Sensors (Basel) Article In this paper, the problem of how to estimate the distance between an infrared emitter diode (IRED) and a camera from pixel grey-level intensities is examined from a practical standpoint. Magnitudes that affect grey level intensity were defined and related to the zero frequency component from the FFT image. A general model was also described and tested for distance estimation over the range from 420 to 800 cm using a differential methodology. Method accuracy is over 3%. Molecular Diversity Preservation International (MDPI) 2009-12-22 /pmc/articles/PMC3267231/ /pubmed/22303183 http://dx.doi.org/10.3390/s91210434 Text en © 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Lázaro, José L.
Cano, Angel E.
Fernández, Pedro R.
Luna, Carlos A.
Sensor for Distance Estimation Using FFT of Images
title Sensor for Distance Estimation Using FFT of Images
title_full Sensor for Distance Estimation Using FFT of Images
title_fullStr Sensor for Distance Estimation Using FFT of Images
title_full_unstemmed Sensor for Distance Estimation Using FFT of Images
title_short Sensor for Distance Estimation Using FFT of Images
title_sort sensor for distance estimation using fft of images
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267231/
https://www.ncbi.nlm.nih.gov/pubmed/22303183
http://dx.doi.org/10.3390/s91210434
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