Results 71 to 80 of about 204,035 (336)

Mapping Materials and Dyes on Historic Tapestries Using Hyperspectral Imaging

Heritage, 2023
Hyperspectral imaging has emerged as a promising analytical method of artwork due to its potential in combining non-invasive analytical capabilities and imaging allowing the survey of the entire (or of a large area of the) surface of an artwork, which is
Constantina Vlachou-Mogire, Jon Danskin, John R. Gilchrist, Kathryn Hallett   +3 more
doaj   +1 more source

Hyperspectral colon tissue cell classification [PDF]

, 2004
A novel algorithm to discriminate between normal and malignant tissue cells of the human colon is presented. The microscopic level images of human colon tissue cells were acquired using hyperspectral imaging technology at contiguous wavelength intervals ...
Rajpoot, Kashif, Rajpoot, Nasir M. (Nasir Mahmood), Turner, Martin J.   +2 more
core  

Generalized linear mixing model accounting for endmember variability

, 2017
Endmember variability is an important factor for accurately unveiling vital information relating the pure materials and their distribution in hyperspectral images.
Bermudez, José Carlos Moreira, Borsoi, Ricardo Augusto, Imbiriba, Tales   +2 more
core   +1 more source

The Uppsala APP Mutation Promotes Wild‐Type Amyloid‐β Aggregation and Deposition In Vivo

Advanced Science, EarlyView.
We investigated in vivo cross‐seeding of amyloid‐β (Aβ) isoforms in transgenic mice co‐expressing wild‐typeAβ and the Uppsala‐mutant Aβ variant (AβUpp), lacking six central residues. Weleveraged MALDI‐MS imaging and hyperspectral microscopy to follow spatio‐temporalAβ deposition.
Junyue Ge, María Pagnon de la Vega, Silvia Zampar, Enrica Cerilli, Srinivas Koutarapu, Ling Wu, Paul Fraser, Sertan Arkan, Vilmantas Giedraitis, Lars Lannfelt, Greta Hultqvist, Stina Syvänen, Martin Ingelsson, Jörg Hanrieder, Dag Sehlin   +14 more
wiley   +1 more source

Single‐Particle Mid‐Infrared Photothermal Imaging Reveals Hidden Heterogeneity in Real‐World Micro‐ and Nanoplastics

Advanced Science, EarlyView.
Mid‐infrared photothermal imaging enables multidimensional profiling of micro‐ and nanoplastics in bottled water. A total of 9.9 × 104 particles L−1 is detected, with 64% in the nanoscale regime. Spectral evolution, including peak narrowing and band shifts, reveals local chain reorganization in polyethylene terephthalate (PET), highlighting intrinsic ...
Xinyu Deng, Yongqing Zhang, Xiaobin Tang, Hyeon Jeong Lee, Delong Zhang   +4 more
wiley   +1 more source

Engineered Interfacial Control for Suppression of Phase Instability: Operando Visualization from Device to Module Scale

Advanced Science, EarlyView.
Operando real‐time current density–voltage absorption spectroscopy visualizes spatial phase evolution in mixed‐halide perovskites from device to module scale. Phase instability preferentially initiates in regions with insufficient carrier extraction, revealing electrical boundary conditions as governing factors.
Hangyeol Choi, Soo Woong Jeon, Wookyung Jeon, You‐Hyun Seo, Gill Sang Han, Myunghun Shin, Ji‐Sang Park, Jun Hong Noh, Yohan Yoon   +8 more
wiley   +1 more source

Engineering Nanoemulsions to Maximize NIR‐II Fluorescence and Preserve Photothermal Performance of a Novel Boron Difluoride Formazanate Dye

Angewandte Chemie, EarlyView.
An oil‐in‐water nanoemulsion transforms a boron difluoride formazanate (BDF) dye into a dual‐modal imaging‐guided theranostic agent (BDF‐NE). Its nonpolar oil core maximizes NIR‐II fluorescence while maintaining strong photoacoustic contrast to guide photothermal therapy with high photostability and 66.8% photothermal conversion efficiency, achieving ...
Nahyun Kwon, Francis L. Buguis, Theo Husby, Suhjung Chun, Dongling Zhang, Jiaze Wu, Benjamin Rehl, Binbing Ling, Umar Iqbal, Melissa Washington, Angie Verner, Kai Huang, Juan Chen, Joe B. Gilroy, Gang Zheng   +14 more
wiley   +2 more sources

KDAD: Knowledge Distillation-Based Anomaly Detection for Thermal Infrared Hyperspectral Image

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Autoencoder (AE) is extensively utilized in hyperspectral anomaly detection (HAD) tasks owing to its robust feature extraction and image reconstruction capabilities. However, AE lacks constraints on anomaly samples during the training process, leading to
Enyu Zhao, Hao Zhang, Nianxin Qu, Yulei Wang, Yongguang Zhao   +4 more
doaj   +1 more source

Hyperspectral Mamba for Hyperspectral Object Tracking

Hyperspectral object tracking holds great promise due to the rich spectral information and fine-grained material distinctions in hyperspectral images, which are beneficial in challenging scenarios. While existing hyperspectral trackers have made progress by either transforming hyperspectral data into false-color images or incorporating modality fusion ...
Gao, Long, Zhang, Yunhe, Jiang, Yan, Xie, Weiying, Li, Yunsong   +4 more
openaire   +2 more sources

Hyperspectral Shack–Hartmann test [PDF]

Applied Optics, 2010
A hyperspectral Shack-Hartmann test bed has been developed to characterize the performance of miniature optics across a wide spectral range, a necessary first step in developing broadband achromatized all-polymer endomicroscopes. The Shack-Hartmann test bed was used to measure the chromatic focal shift (CFS) of a glass singlet lens and a glass ...
Gabriel C, Birch, Michael R, Descour, Tomasz S, Tkaczyk   +2 more
openaire   +2 more sources