High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering
The coded aperture snapshot spectral imaging system (CASSI) is an imaging architecture which senses the three dimensional informa-tion of a scene with two dimensional (2D) focal plane array (FPA) coded projection measurements. A reconstruction algorithm takes advantage of the compressive measurement...
- Autores:
-
Diaz, Nelson Eduardo
Rueda Chacon, Hoover Fabian
Arguello Fuentes, Henry
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2015
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/67646
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/67646
http://bdigital.unal.edu.co/68675/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Compressive sensing
hyperspectral imaging
saturation
dynamic range
coded aperture
optical imaging.
Muestreo compresivo
imágenes hiperespectrales
saturación
rango dinámico
apertura codificada
imágenes ópticas.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Universidad Nacional de Colombia |
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|
| dc.title.spa.fl_str_mv |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering |
| title |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering |
| spellingShingle |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering 62 Ingeniería y operaciones afines / Engineering Compressive sensing hyperspectral imaging saturation dynamic range coded aperture optical imaging. Muestreo compresivo imágenes hiperespectrales saturación rango dinámico apertura codificada imágenes ópticas. |
| title_short |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering |
| title_full |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering |
| title_fullStr |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering |
| title_full_unstemmed |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering |
| title_sort |
High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering |
| dc.creator.fl_str_mv |
Diaz, Nelson Eduardo Rueda Chacon, Hoover Fabian Arguello Fuentes, Henry |
| dc.contributor.author.spa.fl_str_mv |
Diaz, Nelson Eduardo Rueda Chacon, Hoover Fabian Arguello Fuentes, Henry |
| dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
| topic |
62 Ingeniería y operaciones afines / Engineering Compressive sensing hyperspectral imaging saturation dynamic range coded aperture optical imaging. Muestreo compresivo imágenes hiperespectrales saturación rango dinámico apertura codificada imágenes ópticas. |
| dc.subject.proposal.spa.fl_str_mv |
Compressive sensing hyperspectral imaging saturation dynamic range coded aperture optical imaging. Muestreo compresivo imágenes hiperespectrales saturación rango dinámico apertura codificada imágenes ópticas. |
| description |
The coded aperture snapshot spectral imaging system (CASSI) is an imaging architecture which senses the three dimensional informa-tion of a scene with two dimensional (2D) focal plane array (FPA) coded projection measurements. A reconstruction algorithm takes advantage of the compressive measurements sparsity to recover the underlying 3D data cube. Traditionally, CASSI uses block-un-block coded apertures (BCA) to spatially modulate the light. In CASSI the quality of the reconstructed images depends on the design of these coded apertures and the FPA dynamic range. This work presents a new CASSI architecture based on grayscaled coded apertu-res (GCA) which reduce the FPA saturation and increase the dynamic range of the reconstructed images. The set of GCA is calculated in a real-time adaptive manner exploiting the information from the FPA compressive measurements. Extensive simulations show the attained improvement in the quality of the reconstructed images when GCA are employed. In addition, a comparison between traditional coded apertures and GCA is realized with respect to noise tolerance. |
| publishDate |
2015 |
| dc.date.issued.spa.fl_str_mv |
2015-09-01 |
| dc.date.accessioned.spa.fl_str_mv |
2019-07-03T04:45:33Z |
| dc.date.available.spa.fl_str_mv |
2019-07-03T04:45:33Z |
| dc.type.spa.fl_str_mv |
Artículo de revista |
| dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
| dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/ART |
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http://purl.org/coar/resource_type/c_6501 |
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publishedVersion |
| dc.identifier.issn.spa.fl_str_mv |
ISSN: 2248-8723 |
| dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/67646 |
| dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/68675/ |
| identifier_str_mv |
ISSN: 2248-8723 |
| url |
https://repositorio.unal.edu.co/handle/unal/67646 http://bdigital.unal.edu.co/68675/ |
| dc.language.iso.spa.fl_str_mv |
spa |
| language |
spa |
| dc.relation.spa.fl_str_mv |
https://revistas.unal.edu.co/index.php/ingeinv/article/view/49868 |
| dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e Investigación Ingeniería e Investigación |
| dc.relation.references.spa.fl_str_mv |
Diaz, Nelson Eduardo and Rueda Chacon, Hoover Fabian and Arguello Fuentes, Henry (2015) High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering. Ingeniería e Investigación, 35 (3). pp. 53-60. ISSN 2248-8723 |
| dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
| dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
| dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
| dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
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Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería |
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Universidad Nacional de Colombia |
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https://repositorio.unal.edu.co/bitstream/unal/67646/1/49868-277146-1-PB.pdf https://repositorio.unal.edu.co/bitstream/unal/67646/2/49868-277146-1-PB.pdf.jpg |
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repositorio_nal@unal.edu.co |
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1814089232709320704 |
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Diaz, Nelson Eduardoe3eac086-fb76-4fe9-b026-91cae6a33e64300Rueda Chacon, Hoover Fabian08fa5c40-078a-4190-bf8d-077036c5db0f300Arguello Fuentes, Henry900ac240-45af-4faa-b0db-153fb5ee5a823002019-07-03T04:45:33Z2019-07-03T04:45:33Z2015-09-01ISSN: 2248-8723https://repositorio.unal.edu.co/handle/unal/67646http://bdigital.unal.edu.co/68675/The coded aperture snapshot spectral imaging system (CASSI) is an imaging architecture which senses the three dimensional informa-tion of a scene with two dimensional (2D) focal plane array (FPA) coded projection measurements. A reconstruction algorithm takes advantage of the compressive measurements sparsity to recover the underlying 3D data cube. Traditionally, CASSI uses block-un-block coded apertures (BCA) to spatially modulate the light. In CASSI the quality of the reconstructed images depends on the design of these coded apertures and the FPA dynamic range. This work presents a new CASSI architecture based on grayscaled coded apertu-res (GCA) which reduce the FPA saturation and increase the dynamic range of the reconstructed images. The set of GCA is calculated in a real-time adaptive manner exploiting the information from the FPA compressive measurements. Extensive simulations show the attained improvement in the quality of the reconstructed images when GCA are employed. In addition, a comparison between traditional coded apertures and GCA is realized with respect to noise tolerance.El sistema de adquisición de imágenes espectrales basado en una apertura codificada de única captura (CASSI) es una arquitectura para muestrear imágenes espectrales que captura información de una escena en tres dimensiones mediante medidas proyectadas y codificadas del sensor en dos dimensiones (2D). Para recuperar el cubo de datos se emplea un algoritmo de reconstrucción que apro-vecha la esparcidad de las medidas compresivas. Tradicionalmente, CASSI usa aperturas codificadas binarias para modular espacial-mente la luz. En CASSI la calidad de las imágenes reconstruidas depende del diseño de estas aperturas codificadas y de la saturación del sensor. Este trabajo presenta una nueva arquitectura CASSI basada en aperturas codificadas de escala de grises (ACG), la cual reduce la saturación en el sensor e incrementa el rango dinámico de las imágenes reconstruidas. El conjunto de ACG se calcula en tiempo real de forma adaptativa explotando la información contenida en las medidas compresivas del sensor. La mejora obtenida en la calidad de las imágenes reconstruidas se muestra a partir de diversas simulaciones en las que se utilizan las ACG. Adicionalmente, se lleva a cabo una comparación entre las aperturas codificadas tradicionales y las ACG con respecto a la tolerancia del ruido.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ingenieríahttps://revistas.unal.edu.co/index.php/ingeinv/article/view/49868Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e InvestigaciónIngeniería e InvestigaciónDiaz, Nelson Eduardo and Rueda Chacon, Hoover Fabian and Arguello Fuentes, Henry (2015) High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering. Ingeniería e Investigación, 35 (3). pp. 53-60. ISSN 2248-872362 Ingeniería y operaciones afines / EngineeringCompressive sensinghyperspectral imagingsaturationdynamic rangecoded apertureoptical imaging.Muestreo compresivoimágenes hiperespectralessaturaciónrango dinámicoapertura codificadaimágenes ópticas.High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filteringArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL49868-277146-1-PB.pdfapplication/pdf2970689https://repositorio.unal.edu.co/bitstream/unal/67646/1/49868-277146-1-PB.pdf9a8d39109f79c8435625141e7950e2d7MD51THUMBNAIL49868-277146-1-PB.pdf.jpg49868-277146-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8756https://repositorio.unal.edu.co/bitstream/unal/67646/2/49868-277146-1-PB.pdf.jpg657086feef94c6a4e94ef6eec275956cMD52unal/67646oai:repositorio.unal.edu.co:unal/676462023-05-30 23:03:26.409Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |