A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5194/isprsarchives-XL-5-87-2014 http://hdl.handle.net/11449/171801 |
Resumo: | The determination of the Diameter at Breast Height (DBH) is an important variable that contributes to several studies on forest, e.g., environmental monitoring, tree growth, volume of wood, and biomass estimation. This paper presents a preliminary technique for the measurement of tree trunks using terrestrial images collected with a panoramic camera in nadir view. A multi-scale model is generated with these images. Homologue points on the trunk surface are measured over the images and their ground coordinates are determined by intersection of rays. The resulting XY coordinates of each trunk, defining an arc shape, can be used as observations in a circle fitting by least squares. Then, the DBH of each trunk is calculated using an estimated radius. Experiments were performed in two urban forest areas to assess the approach. In comparison with direct measurements on the trunks taken with a measuring tape, the discrepancies presented a Root Mean Square Error (RMSE) of 1.8 cm with a standard deviation of 0.7 cm. These results demonstrate compatibility with manual measurements and confirm the feasibility of the proposed technique. |
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A feasibility study on the measurement of tree trunks in forests using multi-scale vertical imagesBundle adjustmentCircle fittingFisheyeMatchingOrientationPhotogrammetryThe determination of the Diameter at Breast Height (DBH) is an important variable that contributes to several studies on forest, e.g., environmental monitoring, tree growth, volume of wood, and biomass estimation. This paper presents a preliminary technique for the measurement of tree trunks using terrestrial images collected with a panoramic camera in nadir view. A multi-scale model is generated with these images. Homologue points on the trunk surface are measured over the images and their ground coordinates are determined by intersection of rays. The resulting XY coordinates of each trunk, defining an arc shape, can be used as observations in a circle fitting by least squares. Then, the DBH of each trunk is calculated using an estimated radius. Experiments were performed in two urban forest areas to assess the approach. In comparison with direct measurements on the trunks taken with a measuring tape, the discrepancies presented a Root Mean Square Error (RMSE) of 1.8 cm with a standard deviation of 0.7 cm. These results demonstrate compatibility with manual measurements and confirm the feasibility of the proposed technique.Univ. Estadual Paulista - UNESP, Faculty of Sciences and Technology, Graduate Program in Cartographic SciencesUniv. Estadual Paulista - UNESP, Faculty of Sciences and Technology, Department of CartographyUniv. Estadual Paulista - UNESP, Faculty of Sciences and Technology, Graduate Program in Cartographic SciencesUniv. Estadual Paulista - UNESP, Faculty of Sciences and Technology, Department of CartographyUniversidade Estadual Paulista (Unesp)Berveglieri, A. [UNESP]Oliveira, R. A. [UNESP]Tommaselli, A. M.G. [UNESP]2018-12-11T16:57:12Z2018-12-11T16:57:12Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject87-92application/pdfhttp://dx.doi.org/10.5194/isprsarchives-XL-5-87-2014International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, v. 40, n. 5, p. 87-92, 2014.1682-1750http://hdl.handle.net/11449/17180110.5194/isprsarchives-XL-5-87-20142-s2.0-849242697262-s2.0-84924269726.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archivesinfo:eu-repo/semantics/openAccess2024-06-18T15:02:40Zoai:repositorio.unesp.br:11449/171801Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:36:57.286259Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images |
title |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images |
spellingShingle |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images Berveglieri, A. [UNESP] Bundle adjustment Circle fitting Fisheye Matching Orientation Photogrammetry |
title_short |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images |
title_full |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images |
title_fullStr |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images |
title_full_unstemmed |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images |
title_sort |
A feasibility study on the measurement of tree trunks in forests using multi-scale vertical images |
author |
Berveglieri, A. [UNESP] |
author_facet |
Berveglieri, A. [UNESP] Oliveira, R. A. [UNESP] Tommaselli, A. M.G. [UNESP] |
author_role |
author |
author2 |
Oliveira, R. A. [UNESP] Tommaselli, A. M.G. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Berveglieri, A. [UNESP] Oliveira, R. A. [UNESP] Tommaselli, A. M.G. [UNESP] |
dc.subject.por.fl_str_mv |
Bundle adjustment Circle fitting Fisheye Matching Orientation Photogrammetry |
topic |
Bundle adjustment Circle fitting Fisheye Matching Orientation Photogrammetry |
description |
The determination of the Diameter at Breast Height (DBH) is an important variable that contributes to several studies on forest, e.g., environmental monitoring, tree growth, volume of wood, and biomass estimation. This paper presents a preliminary technique for the measurement of tree trunks using terrestrial images collected with a panoramic camera in nadir view. A multi-scale model is generated with these images. Homologue points on the trunk surface are measured over the images and their ground coordinates are determined by intersection of rays. The resulting XY coordinates of each trunk, defining an arc shape, can be used as observations in a circle fitting by least squares. Then, the DBH of each trunk is calculated using an estimated radius. Experiments were performed in two urban forest areas to assess the approach. In comparison with direct measurements on the trunks taken with a measuring tape, the discrepancies presented a Root Mean Square Error (RMSE) of 1.8 cm with a standard deviation of 0.7 cm. These results demonstrate compatibility with manual measurements and confirm the feasibility of the proposed technique. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 2018-12-11T16:57:12Z 2018-12-11T16:57:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.5194/isprsarchives-XL-5-87-2014 International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, v. 40, n. 5, p. 87-92, 2014. 1682-1750 http://hdl.handle.net/11449/171801 10.5194/isprsarchives-XL-5-87-2014 2-s2.0-84924269726 2-s2.0-84924269726.pdf |
url |
http://dx.doi.org/10.5194/isprsarchives-XL-5-87-2014 http://hdl.handle.net/11449/171801 |
identifier_str_mv |
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, v. 40, n. 5, p. 87-92, 2014. 1682-1750 10.5194/isprsarchives-XL-5-87-2014 2-s2.0-84924269726 2-s2.0-84924269726.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
87-92 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129227626643456 |