Results 61 to 70 of about 1,868 (173)

Dual‐Polarization‐Sensitive Organic Photodetectors for Real‐Time Polarimetric Imaging

Laser &Photonics Reviews, Volume 20, Issue 9, 6 May 2026.
Bias‐switchable organic photodetectors with orthogonally stacked uniaxially oriented polymer layers enable dual‐polarization detection and real‐time polarimetric imaging. This scalable, template‐free strategy achieves a high dichroic ratio (>11), rapid response (>500 Hz), and detectivity up to 1013 Jones.
Jiayin Han, Wanzhu Cai, Yingying Xue, Qi Zhu, Mingsheng Gao, Yu Tang, Zhuangmiao Wang, Furong Zhu   +7 more
wiley   +1 more source

Improved Tropical Cyclone Wind Estimation Using Dual‐Polarization C‐Band SAR and Machine Learning

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Tropical cyclones (TCs) characterized by extreme wind speeds present severe hazards to human life and infrastructure. Spaceborne synthetic aperture radar (SAR) has emerged as a critical observational tool for TCs, owing to its all‐weather, high‐resolution imaging capabilities.
Chaogang Guo, Weihua Ai, Xianbin Zhao, Zhancai Liu, Hongwei Yang, Jiajia Tang   +5 more
wiley   +1 more source

Data-driven polarimetric approaches fuel computational imaging expansion

Opto-Electronic Advances
Incorporating polarization in computer vision tasks provides new solutions to high-level analytics, in particular when coupled with machine learning frameworks such as convolutional neural networks (CNN).
Sylvain Gigan
doaj   +1 more source

CFAR edge detector for polarimetric SAR images [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2003
Finding the edges between different regions in an image is one of the fundamental steps of image analysis, and several edge detectors suitable for the special statistics of synthetic aperture radar (SAR) intensity images have previously been developed.
Jesper Schou, Henning Skriver, Allan Aasbjerg Nielsen, Knut Conradsen   +3 more
openaire   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

Assessment of GF-3 Polarimetric SAR Data for Physical Scattering Mechanism Analysis and Terrain Classification

Sensors, 2017
On 10 August 2016 China launched the GF-3, its first C-band polarimetric synthetic aperture radar (SAR) satellite, which was put into operation at the end of January, 2017.
Junjun Yin, Jian Yang, Qingjun Zhang
doaj   +1 more source

Polarimetric imaging and blood vessel quantification

Optics Express, 2004
We applied a polarimetric analysis to retinal imaging, to examine the potential improvement in characterizing blood vessels. To minimize the reflection artifact of the superficial wall of the blood vessel, we computed depolarized light images by removing the polarization retaining light reaching the instrument.
Anke, Weber, Michael, Cheney, Quinn, Smithwick, Ann, Elsner   +3 more
openaire   +2 more sources

Past Field Experiments of Solar Radiation Modification: A Review of the Scientific and Technical Aspects for Governance

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract As global warming intensifies, Solar Radiation Modification (SRM) has drawn increasing scientific and policy interest as a potential means to temporarily offset climate impacts. This review examines past SRM (or SRM‐like) field experiments, categorized into three primary techniques: Tropospheric and Stratospheric Aerosol Injection (SAI ...
I. Hernandez‐Galindo, A. Määttänen, B. H. Redmond Roche, O. Boucher, P. J. Irvine, J. C. Moore   +5 more
wiley   +1 more source

PCCN: Polarimetric Contexture Convolutional Network for PolSAR Image Super-Resolution

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Polarimetric synthetic aperture radar (PolSAR) can acquire full-polarization information, which is the solid foundation for target scattering mechanism interpretation and utilization. Meanwhile, PolSAR image resolution is usually lower than the synthetic
Lin-Yu Dai, Ming-Dian Li, Si-Wei Chen
doaj   +1 more source

Learning-based denoising for polarimetric images

Optics Express, 2020
Based on measuring the polarimetric parameters which contain specific physical information, polarimetric imaging has been widely applied to various fields. However, in practice, the noise during image acquisition could lead to the output of noisy polarimetric images.
Xiaobo Li, Haiyu Li, Yang Lin, Jianhua Guo, Jingyu Yang, Huanjing Yue, Kun Li, Chuan Li, Zhenzhou Cheng, Haofeng Hu, Tiegen Liu   +10 more
openaire   +2 more sources