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Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications
In the photogrammetry field, interest in region detectors, which are widely used in Computer Vision, is quickly increasing due to the availability of new techniques. Images acquired by Mobile Mapping Technology, Oblique Photogrammetric Cameras or Unmanned Aerial Vehicles do not observe normal acquis...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2009
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3297131/ https://www.ncbi.nlm.nih.gov/pubmed/22412336 http://dx.doi.org/10.3390/s90503745 |
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author | Lingua, Andrea Marenchino, Davide Nex, Francesco |
author_facet | Lingua, Andrea Marenchino, Davide Nex, Francesco |
author_sort | Lingua, Andrea |
collection | PubMed |
description | In the photogrammetry field, interest in region detectors, which are widely used in Computer Vision, is quickly increasing due to the availability of new techniques. Images acquired by Mobile Mapping Technology, Oblique Photogrammetric Cameras or Unmanned Aerial Vehicles do not observe normal acquisition conditions. Feature extraction and matching techniques, which are traditionally used in photogrammetry, are usually inefficient for these applications as they are unable to provide reliable results under extreme geometrical conditions (convergent taking geometry, strong affine transformations, etc.) and for bad-textured images. A performance analysis of the SIFT technique in aerial and close-range photogrammetric applications is presented in this paper. The goal is to establish the suitability of the SIFT technique for automatic tie point extraction and approximate DSM (Digital Surface Model) generation. First, the performances of the SIFT operator have been compared with those provided by feature extraction and matching techniques used in photogrammetry. All these techniques have been implemented by the authors and validated on aerial and terrestrial images. Moreover, an auto-adaptive version of the SIFT operator has been developed, in order to improve the performances of the SIFT detector in relation to the texture of the images. The Auto-Adaptive SIFT operator (A(2) SIFT) has been validated on several aerial images, with particular attention to large scale aerial images acquired using mini-UAV systems. |
format | Online Article Text |
id | pubmed-3297131 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2009 |
publisher | Molecular Diversity Preservation International (MDPI) |
record_format | MEDLINE/PubMed |
spelling | pubmed-32971312012-03-12 Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications Lingua, Andrea Marenchino, Davide Nex, Francesco Sensors (Basel) Article In the photogrammetry field, interest in region detectors, which are widely used in Computer Vision, is quickly increasing due to the availability of new techniques. Images acquired by Mobile Mapping Technology, Oblique Photogrammetric Cameras or Unmanned Aerial Vehicles do not observe normal acquisition conditions. Feature extraction and matching techniques, which are traditionally used in photogrammetry, are usually inefficient for these applications as they are unable to provide reliable results under extreme geometrical conditions (convergent taking geometry, strong affine transformations, etc.) and for bad-textured images. A performance analysis of the SIFT technique in aerial and close-range photogrammetric applications is presented in this paper. The goal is to establish the suitability of the SIFT technique for automatic tie point extraction and approximate DSM (Digital Surface Model) generation. First, the performances of the SIFT operator have been compared with those provided by feature extraction and matching techniques used in photogrammetry. All these techniques have been implemented by the authors and validated on aerial and terrestrial images. Moreover, an auto-adaptive version of the SIFT operator has been developed, in order to improve the performances of the SIFT detector in relation to the texture of the images. The Auto-Adaptive SIFT operator (A(2) SIFT) has been validated on several aerial images, with particular attention to large scale aerial images acquired using mini-UAV systems. Molecular Diversity Preservation International (MDPI) 2009-05-18 /pmc/articles/PMC3297131/ /pubmed/22412336 http://dx.doi.org/10.3390/s90503745 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 Lingua, Andrea Marenchino, Davide Nex, Francesco Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications |
title | Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications |
title_full | Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications |
title_fullStr | Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications |
title_full_unstemmed | Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications |
title_short | Performance Analysis of the SIFT Operator for Automatic Feature Extraction and Matching in Photogrammetric Applications |
title_sort | performance analysis of the sift operator for automatic feature extraction and matching in photogrammetric applications |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3297131/ https://www.ncbi.nlm.nih.gov/pubmed/22412336 http://dx.doi.org/10.3390/s90503745 |
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