A study on the variations of inner orientation parameters of a hyperspectral frame camera
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/isprs-archives-XLII-1-429-2018 http://hdl.handle.net/11449/228612 |
Resumo: | New low-cost hyperspectral frame sensors have created a new perspective for remote sensing applications. In this work, we investigate some issues related to the geometric calibration of a hyperspectral frame camera based of FPI (Fabry-Pérot Interferometer), the Rikola camera. The approach proposed in paper is to study the changes in internal optical path caused by the FPI and by the splitting prism. The aim is to model the changes in the IOPs with an analytical function and also to estimate the misalignments between sensors. Several experiments were performed. The changes in position of a specific point were analasyzed to confirm that the bundle of rays is deviated. A self-calibrating bundle adjustment was performed and the Interior Orientation Parameters (IOP) of each band were estimated. The IOPs were analysed and it was concluded that a single set of symmetrical radial distortion parameters can be used for all band. Also, the estimated parameters for each image band were analysed as a function of the air gap of the FPI interferometer. It was noticed some correlation between the focal length and the air gap, and an air-gap dependent model was estimated. Thus, instead of considering an IOP set for each band or for each sensor, a single set of distortion parameters and another set of parameters that is “air-gap dependent”, was assessed. Another important issue was the determination of the misalignment angles between the two sensors, which can explain some differences in the recovered camera trajectory when performing the bundle adjustment. |
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A study on the variations of inner orientation parameters of a hyperspectral frame cameraCamera CalibrationHyperspectral cameraInterior Orientation ParametersNew low-cost hyperspectral frame sensors have created a new perspective for remote sensing applications. In this work, we investigate some issues related to the geometric calibration of a hyperspectral frame camera based of FPI (Fabry-Pérot Interferometer), the Rikola camera. The approach proposed in paper is to study the changes in internal optical path caused by the FPI and by the splitting prism. The aim is to model the changes in the IOPs with an analytical function and also to estimate the misalignments between sensors. Several experiments were performed. The changes in position of a specific point were analasyzed to confirm that the bundle of rays is deviated. A self-calibrating bundle adjustment was performed and the Interior Orientation Parameters (IOP) of each band were estimated. The IOPs were analysed and it was concluded that a single set of symmetrical radial distortion parameters can be used for all band. Also, the estimated parameters for each image band were analysed as a function of the air gap of the FPI interferometer. It was noticed some correlation between the focal length and the air gap, and an air-gap dependent model was estimated. Thus, instead of considering an IOP set for each band or for each sensor, a single set of distortion parameters and another set of parameters that is “air-gap dependent”, was assessed. Another important issue was the determination of the misalignment angles between the two sensors, which can explain some differences in the recovered camera trajectory when performing the bundle adjustment.Department of Cartography São Paulo State UniversitySão Paulo State UniversityDepartment of Statistics São Paulo State UniversityDepartment of Remote Sensing and Photogrammetry Finnish Geospatial Research Institute FGIDepartment of Cartography São Paulo State UniversitySão Paulo State UniversityDepartment of Statistics São Paulo State UniversityUniversidade Estadual Paulista (UNESP)Finnish Geospatial Research Institute FGITommaselli, A. M.G. [UNESP]Santos, L. D. [UNESP]Berveglieri, A. [UNESP]Oliveira, R. A.Honkavaara, E.2022-04-29T08:27:46Z2022-04-29T08:27:46Z2018-09-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject429-436http://dx.doi.org/10.5194/isprs-archives-XLII-1-429-2018International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, v. 42, n. 1, p. 429-436, 2018.1682-1750http://hdl.handle.net/11449/22861210.5194/isprs-archives-XLII-1-429-20182-s2.0-85056173241Scopusreponame: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:11449/228612Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:18:48.900990Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A study on the variations of inner orientation parameters of a hyperspectral frame camera |
title |
A study on the variations of inner orientation parameters of a hyperspectral frame camera |
spellingShingle |
A study on the variations of inner orientation parameters of a hyperspectral frame camera Tommaselli, A. M.G. [UNESP] Camera Calibration Hyperspectral camera Interior Orientation Parameters |
title_short |
A study on the variations of inner orientation parameters of a hyperspectral frame camera |
title_full |
A study on the variations of inner orientation parameters of a hyperspectral frame camera |
title_fullStr |
A study on the variations of inner orientation parameters of a hyperspectral frame camera |
title_full_unstemmed |
A study on the variations of inner orientation parameters of a hyperspectral frame camera |
title_sort |
A study on the variations of inner orientation parameters of a hyperspectral frame camera |
author |
Tommaselli, A. M.G. [UNESP] |
author_facet |
Tommaselli, A. M.G. [UNESP] Santos, L. D. [UNESP] Berveglieri, A. [UNESP] Oliveira, R. A. Honkavaara, E. |
author_role |
author |
author2 |
Santos, L. D. [UNESP] Berveglieri, A. [UNESP] Oliveira, R. A. Honkavaara, E. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Finnish Geospatial Research Institute FGI |
dc.contributor.author.fl_str_mv |
Tommaselli, A. M.G. [UNESP] Santos, L. D. [UNESP] Berveglieri, A. [UNESP] Oliveira, R. A. Honkavaara, E. |
dc.subject.por.fl_str_mv |
Camera Calibration Hyperspectral camera Interior Orientation Parameters |
topic |
Camera Calibration Hyperspectral camera Interior Orientation Parameters |
description |
New low-cost hyperspectral frame sensors have created a new perspective for remote sensing applications. In this work, we investigate some issues related to the geometric calibration of a hyperspectral frame camera based of FPI (Fabry-Pérot Interferometer), the Rikola camera. The approach proposed in paper is to study the changes in internal optical path caused by the FPI and by the splitting prism. The aim is to model the changes in the IOPs with an analytical function and also to estimate the misalignments between sensors. Several experiments were performed. The changes in position of a specific point were analasyzed to confirm that the bundle of rays is deviated. A self-calibrating bundle adjustment was performed and the Interior Orientation Parameters (IOP) of each band were estimated. The IOPs were analysed and it was concluded that a single set of symmetrical radial distortion parameters can be used for all band. Also, the estimated parameters for each image band were analysed as a function of the air gap of the FPI interferometer. It was noticed some correlation between the focal length and the air gap, and an air-gap dependent model was estimated. Thus, instead of considering an IOP set for each band or for each sensor, a single set of distortion parameters and another set of parameters that is “air-gap dependent”, was assessed. Another important issue was the determination of the misalignment angles between the two sensors, which can explain some differences in the recovered camera trajectory when performing the bundle adjustment. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-20 2022-04-29T08:27:46Z 2022-04-29T08:27:46Z |
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/isprs-archives-XLII-1-429-2018 International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, v. 42, n. 1, p. 429-436, 2018. 1682-1750 http://hdl.handle.net/11449/228612 10.5194/isprs-archives-XLII-1-429-2018 2-s2.0-85056173241 |
url |
http://dx.doi.org/10.5194/isprs-archives-XLII-1-429-2018 http://hdl.handle.net/11449/228612 |
identifier_str_mv |
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, v. 42, n. 1, p. 429-436, 2018. 1682-1750 10.5194/isprs-archives-XLII-1-429-2018 2-s2.0-85056173241 |
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 |
429-436 |
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_ |
1808129308018868224 |