A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios

Images from high dynamic range (HDR) scenes must be obtained with minimum loss of information. For this purpose it is necessary to take full advantage of the quantification levels provided by the CCD/CMOS image sensor. LinLog CMOS sensors satisfy the above demand by offering an adjustable response c...

ver descrição completa

Detalhes bibliográficos
Autores: Martínez Sánchez, Antonio, Fernández, Carlos, Navarro Lorente, Pedro Javier, Iborra García, Andrés José
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Recursos:Universidad Politécnica de Cartagena(UPCT)
Repositorio:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/5143
Acesso em linha:http://hdl.handle.net/10317/5143
http://www.mdpi.com/1424-8220/11/9/8412
Access Level:acceso abierto
Palavra-chave:Image sensors
Sensores de imagen
Outdoor vision
Visión exterior
HDR imaging
Imágenes HDR
Teoría de la Señal y las Comunicaciones
id ES_bc380dbffba2c537a66c49ad1d0730d2
oai_identifier_str oai:repositorio.upct.es:10317/5143
network_acronym_str ES
network_name_str España
repository_id_str
spelling A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range ScenariosMartínez Sánchez, AntonioFernández, CarlosNavarro Lorente, Pedro JavierIborra García, Andrés JoséImage sensorsSensores de imagenOutdoor visionVisión exteriorHDR imagingImágenes HDRTeoría de la Señal y las ComunicacionesImages from high dynamic range (HDR) scenes must be obtained with minimum loss of information. For this purpose it is necessary to take full advantage of the quantification levels provided by the CCD/CMOS image sensor. LinLog CMOS sensors satisfy the above demand by offering an adjustable response curve that combines linear and logarithmic responses. This paper presents a novel method to quickly adjust the parameters that control the response curve of a LinLog CMOS image sensor. We propose to use an Adaptive Proportional-Integral-Derivative controller to adjust the exposure time of the sensor, together with control algorithms based on the saturation level and the entropy of the images. With this method the sensor’s maximum dynamic range (120 dB) can be used to acquire good quality images from HDR scenes with fast, automatic adaptation to scene conditions. Adaptation to a new scene is rapid, with a sensor response adjustment of less than eight frames when working in real time video mode. At least 67% of the scene entropy can be retained with this method.The work was carried out as part of the projects EXPLORE (TIN2009-08572) and SiLASVer (TRACE PET 2008-0131) funded by the Spanish National R&D&I Plan. It has also received funding from the Government of the Region of Murcia (Séneca Foundation)Sensors ISSN 1424-8220Sánchez Palma, Pedro201520152011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/10317/5143http://www.mdpi.com/1424-8220/11/9/8412reponame:Repositorio Digital UPCTinstname:Universidad Politécnica de Cartagena(UPCT)InglésTIN2009-08572Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.upct.es:10317/51432026-05-15T06:39:02Z
dc.title.none.fl_str_mv A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
title A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
spellingShingle A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
Martínez Sánchez, Antonio
Image sensors
Sensores de imagen
Outdoor vision
Visión exterior
HDR imaging
Imágenes HDR
Teoría de la Señal y las Comunicaciones
title_short A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
title_full A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
title_fullStr A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
title_full_unstemmed A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
title_sort A Novel Method to Increase LinLog CMOS Sensors’ Performance in High Dynamic Range Scenarios
dc.creator.none.fl_str_mv Martínez Sánchez, Antonio
Fernández, Carlos
Navarro Lorente, Pedro Javier
Iborra García, Andrés José
author Martínez Sánchez, Antonio
author_facet Martínez Sánchez, Antonio
Fernández, Carlos
Navarro Lorente, Pedro Javier
Iborra García, Andrés José
author_role author
author2 Fernández, Carlos
Navarro Lorente, Pedro Javier
Iborra García, Andrés José
author2_role author
author
author
dc.contributor.none.fl_str_mv Sánchez Palma, Pedro
dc.subject.none.fl_str_mv Image sensors
Sensores de imagen
Outdoor vision
Visión exterior
HDR imaging
Imágenes HDR
Teoría de la Señal y las Comunicaciones
topic Image sensors
Sensores de imagen
Outdoor vision
Visión exterior
HDR imaging
Imágenes HDR
Teoría de la Señal y las Comunicaciones
description Images from high dynamic range (HDR) scenes must be obtained with minimum loss of information. For this purpose it is necessary to take full advantage of the quantification levels provided by the CCD/CMOS image sensor. LinLog CMOS sensors satisfy the above demand by offering an adjustable response curve that combines linear and logarithmic responses. This paper presents a novel method to quickly adjust the parameters that control the response curve of a LinLog CMOS image sensor. We propose to use an Adaptive Proportional-Integral-Derivative controller to adjust the exposure time of the sensor, together with control algorithms based on the saturation level and the entropy of the images. With this method the sensor’s maximum dynamic range (120 dB) can be used to acquire good quality images from HDR scenes with fast, automatic adaptation to scene conditions. Adaptation to a new scene is rapid, with a sensor response adjustment of less than eight frames when working in real time video mode. At least 67% of the scene entropy can be retained with this method.
publishDate 2011
dc.date.none.fl_str_mv 2011
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10317/5143
http://www.mdpi.com/1424-8220/11/9/8412
url http://hdl.handle.net/10317/5143
http://www.mdpi.com/1424-8220/11/9/8412
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv TIN2009-08572
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sensors ISSN 1424-8220
publisher.none.fl_str_mv Sensors ISSN 1424-8220
dc.source.none.fl_str_mv reponame:Repositorio Digital UPCT
instname:Universidad Politécnica de Cartagena(UPCT)
instname_str Universidad Politécnica de Cartagena(UPCT)
reponame_str Repositorio Digital UPCT
collection Repositorio Digital UPCT
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869418094457257984
score 15,301603

Registos relacionados