Results 21 to 30 of about 17,521 (263)

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

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

Single Sensor Multi-Spectral Imaging

ELCVIA Electronic Letters on Computer Vision and Image Analysis, 2020
This dissertation presents the benefits of using a multispectral Single Sensor Camera (SSC) that, simultaneously acquire images in the visible and near-infrared (NIR) bands.
Xavier Soria Poma
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

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

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 more
wiley   +1 more source

Hybrid Space Calibrated 3D Network of Diffractive Hyperspectral Optical Imaging Sensor

Sensors
Diffractive multispectral optical imaging plays an essential role in optical sensing, which typically suffers from the image blurring problem caused by the spatially variant point spread function.
Hao Fan, Chenxi Li, Bo Gao, Huangrong Xu, Yuwei Chen, Xuming Zhang, Xu Li, Weixing Yu   +7 more
doaj   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

PRMT1‐Mediated LDHA Methylation Drives STAT3 Lactylation to Orchestrate Intestinal Inflammation and Tumorigenesis

Advanced Science, EarlyView.
This study identifies an immunometabolic axis wherein SAM‐driven PRMT1 methylates LDHA, enhancing its activity. The resultant lactate induces STAT3 K709 lactylation, which stabilizes an active conformation to promote STAT3 phosphorylation and IL‐10 expression.
Hui Wang, Mengyu Zhang, Weipeng Gong, Jiaxuan Wu, Junping Zhang, Wenxiu Zhang, Yue Liu, Kui Wang, Canhua Huang, Jun Zhou, Sijin Wu, Yan Li, Tianliang Li   +12 more
wiley   +1 more source