Results 21 to 30 of about 16,540 (165)

Recent Applications of Multispectral Imaging in Seed Phenotyping and Quality Monitoring—An Overview

Sensors, 2019
As a synergistic integration between spectroscopy and imaging technologies, spectral imaging modalities have been emerged to tackle quality evaluation dilemmas by proposing different designs with effective and practical applications in food and ...
Gamal ElMasry, Nasser Mandour, Salim Al-Rejaie, Etienne Belin, David Rousseau   +4 more
doaj   +1 more source

In Vitro and In Vivo Multispectral Photoacoustic Imaging for the Evaluation of Chromophore Concentration

Sensors, 2021
Multispectral photoacoustic imaging is a powerful noninvasive medical imaging technique that provides access to functional information. In this study, a set of methods is proposed and validated, with experimental multispectral photoacoustic images used ...
Aneline Dolet, Rita Ammanouil, Virginie Petrilli, Cédric Richard, Piero Tortoli, Didier Vray, François Varray   +6 more
doaj   +1 more source

Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
We present THEIA, a novel underwater 3D multispectral imaging system. THEIA integrates a 4MP multispectral field array camera and a high-resolution RGB stereo camera pair in a specially built underwater housing to simultaneously capture spectral and ...
S. Spanos, C. Antoniou, V. Ntouskos, V. Ntouskos, A. Mallios, P. Nomikou, K. Karantzalos   +6 more
doaj   +1 more source

Semantic segmentation of multispectral photoacoustic images using deep learning

Photoacoustics, 2022
Photoacoustic (PA) imaging has the potential to revolutionize functional medical imaging in healthcare due to the valuable information on tissue physiology contained in multispectral photoacoustic measurements.
Melanie Schellenberg, Kris K. Dreher, Niklas Holzwarth, Fabian Isensee, Annika Reinke, Nicholas Schreck, Alexander Seitel, Minu D. Tizabi, Lena Maier-Hein, Janek Gröhl   +9 more
doaj   +1 more source

Multispectral principal component imaging

Optics Express, 2003
We analyze a novel multispectral imager that directly measures the principal component features of an object. Optical feature extraction is studied for color face images, multi-spectral LANDSAT-7 images, and their grayscale equivalents. Blockwise feature extraction is performed that exploits both spatial and spectral correlation, with the goal of ...
Himadri, Pal, Mark, Neifeld
openaire   +2 more sources

Snapshot Multispectral Imaging [PDF]

PhotonicsViews, 2019
AbstractA multispectral imaging concept based on a multi‐aperture system approach using a customized microlens array combined with a slanted continuously variable bandpass filter and a silicon‐based image sensor helps to overcome the restrictions of scanning techniques or wafer‐level coated detectors.
Oliver Pust, Martin Hubold
openaire   +1 more source

Detection of Melanoma Metastases in Resected Human Lymph Nodes by Noninvasive Multispectral Photoacoustic Imaging

International Journal of Biomedical Imaging, 2014
Objective. Sentinel node biopsy in patients with cutaneous melanoma improves staging, provides prognostic information, and leads to an increased survival in node-positive patients. However, frozen section analysis of the sentinel node is not reliable and
Gerrit Cornelis Langhout, Diederik Johannes Grootendorst, Omgo Edo Nieweg, Michel Wilhelmus Jacobus Maria Wouters, Jos Alexander van der Hage, Jithin Jose, Hester van Boven, Wiendelt Steenbergen, Srirang Manohar, Theodoor Jacques Marie Ruers   +9 more
doaj   +1 more source

Review on Multispectral Photoacoustic Imaging Using Stimulated Raman Scattering Light Sources

Sensors
Photoacoustic imaging is an advanced biomedical imaging technique that has been widely developed and applied in diverse biomedical studies. By generating optical-absorption-based signals with ultrasound resolution, it enables in vivo visualization of ...
Yuon Song, Sang Min Park, Yongjae Jeong, Jeesu Kim, Hwidon Lee   +4 more
doaj   +1 more source

SUPER-RESOLUTION OF MULTISPECTRAL IMAGES [PDF]

Modelling and Simulation in Science, 2007
In this paper we propose and analyze a globally and locally adaptive super-resolution Bayesian methodology for pansharpening of multispectral images. The methodology incorporates prior knowledge on the expected characteristics of the multispectral images uses the sensor characteristics to model the observation process of both panchromatic and ...
M. Vega, J. Mateos, R. Molina, A.K. Katsaggelos   +3 more
openaire   +1 more source

Evaluating online filtering algorithms to enhance dynamic multispectral optoacoustic tomography

Photoacoustics, 2020
Multispectral optoacoustic tomography (MSOT) is an emerging imaging modality, which is able to capture data at high spatiotemporal resolution using rapid tuning of the excitation laser wavelength. However, owing to the necessity of imaging one wavelength
Devin O’Kelly, Yihang Guo, Ralph P. Mason   +2 more
doaj   +1 more source