Results 81 to 90 of about 3,935,477 (223)

Hyperspectral Band Selection for Crop Identification and Mapping of Agriculture

Remote Sensing
Different crops, as well as the same crop at different growth stages, display distinct spectral and spatial characteristics in hyperspectral images (HSIs) due to variations in their chemical composition and structural features.
Yulei Tan, Jingtao Gu, Laijun Lu, Liyuan Zhang, Jianyu Huang, Lin Pan, Yan Lv, Yupeng Wang, Yang Chen   +8 more
doaj   +1 more source

Band Selection-Based Dimensionality Reduction for Change Detection in Multi-Temporal Hyperspectral Images

Remote Sensing, 2017
This paper proposes to use band selection-based dimensionality reduction (BS-DR) technique in addressing a challenging multi-temporal hyperspectral images change detection (HSI-CD) problem. The aim of this work is to analyze and evaluate in detail the CD
Sicong Liu, Qian Du, Xiaohua Tong, Alim Samat, Haiyan Pan, Xiaolong Ma   +5 more
doaj   +1 more source

Deep‐Learning‐Based Denoising for Improved Phase Precision in Electron Holography of Electromagnetic Fields in Nanoscale Materials

Advanced Science, EarlyView.
Low‐dose electron holography is limited by shot noise, which buries weak phase signals. HoloDenoiser, a physics‐informed network that works simultaneously in the spatial and frequency domains, locates and protects the holographic sideband while suppressing noise in the hologram.
Ye Luo, Luyang Wang, Zhiling Yu, Xiaowen Chen, Xiaoyu Wang, Ya‐Hui Jia, Thibaud Denneulin, Yu Han, Rafal E. Dunin‐Borkowski, Fengshan Zheng, Qi Liu   +10 more
wiley   +1 more source

Matrix Stiffness Orchestrates Mesenchymal Stem Cell Lineage Commitment Toward Osteogenesis and Adipogenesis Through the PIEZO1/SP1/STC2 Axis

Advanced Science, EarlyView.
Matrix stiffness directs mesenchymal stem cell lineage commitment through PIEZO1‐dependent activation of the SP1/STC2 pathway. Stiff matrices favor osteogenesis and suppress adipogenesis, whereas the loss of PIEZO1 function impairs early bone formation. STC2 retains lineage‐regulatory activity even when PIEZO1 is inactive.
Shuo Zhang, Siteng Li, Wenzhong Chen, Qingcheng Song, Haiyue Zhao, Peng Wang, Yiran Zhang, Wenquan Liang, Shaowei Zheng, Juan Wang, Wei Chen, Yanbin Zhu, Yingze Zhang   +12 more
wiley   +1 more source

Few-Shot Shrub Identification via Hyperspectral Deep Learning: A Case Study of Caragana microphylla Lam in Shrub-Encroached Grasslands

Remote Sensing
Accurately extracting the spatial distribution of shrubs is an important basis for scientific diagnosis, rational prevention, and control of shrub-encroached grasslands (SGs).
Long Chen, Jie Wang, Bin Sun, Zhihai Gao
doaj   +1 more source

NSUN2‐Mediated m5C Modification of TGFB1 in Trophoblasts Remodels Macrophage Function to Prevent URSA

Advanced Science, EarlyView.
NSUN2 and m5C decline in URSA villous tissues. Trophoblast Nsun2 ablation disrupts macrophage‐mediated maternal‐fetal tolerance and triggers embryo resorption. Mechanistically, NSUN2‐YBX1 axis stabilizes m5C‐modified TGFB1 mRNA to maintain TGF‐β1 secretion and M2 polarization, and restoring this signaling rescues maternal‐fetal immune tolerance to ...
Xiaoxiao Zhu, Xinkui Liu, Xiaoyan Yu, Qiaoqiao Han, Feifei Shi, Weiwei Song, Lu Liu, Chu Chu, Chenyang Shen, Zhen Zhang, Xia Li   +10 more
wiley   +1 more source

MTEA-BS: a multi-objective multi-task evolutionary algorithm for unsupervised band selection in hyperspectral images

Journal of King Saud University: Computer and Information Sciences
Hyperspectral images (HSIs) suffer from high dimensionality, significant redundancy, and noise interference, which make direct processing inefficient. As a result, band selection (BS) is a crucial preprocessing step.
Changsheng Wen, heming jia, Yongchao Li, Honghua Rao, Lihong He, Mahmoud Abdel-salam   +5 more
doaj   +1 more source

TEBS: Temperature–Emissivity–Driven band selection for thermal infrared hyperspectral image classification with structured State-Space model and gated attention

International Journal of Applied Earth Observations and Geoinformation
Thermal infrared hyperspectral images (TIR-HSIs) provide unique spectral insights that are often unattainable with visible imagery, making them invaluable for applications such as land cover classification and geological mapping.
Enyu Zhao, Nianxin Qu, Yulei Wang, Caixia Gao, Jian Zeng   +4 more
doaj   +1 more source

FOXP1 Knockdown Reprograms Th9 CAR‐T Cells to Overcome Antigen Escape

Advanced Science, EarlyView.
FOXP1 knockdown enhances Th9 CAR‐T cell function by promoting IL‐9 production, effector activation, and reduced exhaustion. Reprogrammed Th9 CAR‐T cells strengthen direct tumor killing and activate endogenous antitumor immunity through dendritic cells and CD8+ T cells, thereby suppressing both antigen‐positive and antigen‐loss tumor growth and ...
Yihan Zhu, Xingwei Xie, Xiaohuan Wu, Suidong Ouyang, Yang Zhou, Kang Wen, Yutong Zhong, Yuyang Chen, Handuo Wang, Yuan Gao, Ling Jiang, Hui Li, Wenli Zhao, Abai Xu, Enguang Bi   +14 more
wiley   +1 more source

Underwater Hyperspectral Image Band Selection and Object Type Detection Method Based on Continuity and Label Constraints

Remote Sensing
Underwater object detection is a key technique for marine research. Traditional red green blue (RGB) imaging suffers from short detection ranges and serious color distortion in complex underwater environments.
Anqing Li, Xuefeng Liu, Fouad Khelifi
doaj   +1 more source