Exploració per tema "Multispectral imaging"
Ara es mostren els items 1-20 de 20
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Colorimetric analysis of eye fundus structures with multispectral retinography
(International Colour Association (AIC), 2021)
Comunicació de congrés
Accés obertThe analysis of the eye fundus is critical to prevent retinal and choroidal diseases since most of them cause no symptoms at early stages. Treating them when the very first signs appear is crucial to avoid vision losses. ... -
Detection of irrigation inhomogeneities in an olive grove using the NDRE vegetation index obtained from UAV images
(2019-01-01)
Article
Accés obertWe have developed a simple photogrammetric method to identify heterogeneous areas of irrigated olive groves and vineyard crops using a commercial multispectral camera mounted on an unmanned aerial vehicle (UAV). By comparing ... -
Evaluation of state-of-the-art deep learning algorithms for multispectral skin cancer images classification
(Universitat Politècnica de Catalunya, 2021-09-09)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitatIt is a present need to diagnose skin cancer sooner, faster and non-invasively. With recent achievements in the use of non-invasive imaging techniques and learning algorithms for Computer-Aided Diagnosis, the present work ... -
Fast visible and extended nearinfrared multispectral fundus camera
(2019-09)
Article
Accés obertWe present a multispectral fundus camera that performs fast imaging of the ocular posterior pole in the visible and near-infrared (400 to 1300 nm) wavelengths through 15 spectral bands, using a flashlight source made of ... -
Image processing and deep learning for precision agriculture
(Universitat Politècnica de Catalunya, 2022-07-21)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Mejora del diagnóstico del cáncer de piel a través de sistemas ópticos
(2015-12)
Article
Accés obert -
Multispectral and colour imaging systems for the detection of small vertebrate fossils: A preliminary study
(2016)
Article
Accés obert -
Multispectral imaging of healthy and diseased red blood cells using confocal microscopy
(2021-05-14)
Audiovisual
Accés obertRed blood cells (RBCs) alterations can cause very severe blood diseases. In thalassemia, the production of hemoglobin polypeptide chains is unbalanced. This causes no symptoms or small blood count alterations in patients ... -
Multispectral imaging of healthy and diseased red blood cells using confocal microscopy
(2021-05-13)
Comunicació de congrés
Accés obert -
Multispectral imaging of healthy and diseased red blood cells using confocal microscopy
(International Colour Association (AIC), 2020)
Text en actes de congrés
Accés restringit per política de l'editorialRed blood cell disorders represent the most common single-gene defects and pose a major public health problem, particularly in tropical countries, occurring with high frequency. Their diagnose can sometimes be difficult ... -
Multispectral imaging system based on light-emitting diodes for the detection of melanomas and basal cell carcinomas: A pilot study
(2017-06-01)
Article
Accés restringit per política de l'editorialThis article proposes a multispectral system that uses the analysis of the spatial distribution of color and spectral features to improve the detection of skin cancer lesions, specifically melanomas and basal cell carcinomas. ... -
Multispectral retinography in healthy adult population
(Optical Society of American (OSA), 2021)
Comunicació de congrés
Accés obertSpectral reflectance of the eye fundus was evaluated in adult healthy patients through a fast visible and near-infrared multispectral fundus camera. Spectral signatures were analyzed for different ocular structures of the ... -
Multispectral retinography in healthy adult population
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Comunicació de congrés
Accés restringit per política de l'editorialSpectral reflectance of the eye fundus was evaluated in adult healthy patients through a fast visible and near-infrared multispectral fundus camera. Spectral signatures were analyzed for different ocular structures of the ... -
Optical technologies for the improvement of skin cancer diagnosis: a review
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-01-02)
Article
Accés obertThe worldwide incidence of skin cancer has risen rapidly in the last decades, becoming one in three cancers nowadays. Currently, a person has a 4% chance of developing melanoma, the most aggressive form of skin cancer, ... -
Portable multispectral imaging system based on light-emitting diodes for spectral recovery from 370 to 1630 nm
(2014-05-10)
Article
Accés obertTo expand and investigate the potential of spectral imaging, we developed a portable multispectral system using light-emitting diodes. This system recovers spectral information from the UV to the near IR over a large area ... -
Study of skin cancer lesions through multispectral and 3D techniques
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
Text en actes de congrés
Accés restringit per política de l'editorialThe effective and non-invasive diagnosis of skin cancer is a hot topic in biophotonics since the current gold standard, biopsy followed by histological examination, is a slow and costly procedure for the healthcare system. ... -
Training deep learning algorithms with multispectral dataset of skin lesions for the improvement of skin cancer diagnosis
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2023)
Text en actes de congrés
Accés obertDermatologists are starting to make use of Computer-Aided Diagnosis based on deep learning algorithms, which can provide them with an objective judgement during evaluation of equivocal lesions. DL algorithms can be trained ... -
Validation of a gonio-hyperspectral imaging system based on light-emitting diodes for the spectral and colorimetric analysis of automotive coatings
(Optical Society of American (OSA), 2017-09-01)
Article
Accés obertIn this study, a novel gonio-hyperspectral imaging system based on light-emitting diodes for the analysis of automotive coatings was validated colorimetrically and spectrally from 368 to 1309 nm. A total of 30 pearlescent, ... -
Visible and extended near-infrared multispectral imaging for skin cancer diagnosis
(2019-01)
Capítol de llibre
Accés obertWith the goal of diagnosing skin cancer in an early and noninvasive way, an extended near infrared multispectral imaging system based on an InGaAs sensor with sensitivity from 995 nm to 1613 nm was built to evaluate deeper ... -
Visible and extended near-infrared multispectral imaging for skin cancer diagnosis
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-05-05)
Article
Accés obert