Results 51 to 60 of about 1,856,691 (216)

Wavelet-Based Compressed Sensing for Polarimetric SAR Tomography [PDF]

, 2013
Tomographic synthetic aperture radar (SAR) imaging has been recently formulated in a wavelet-based compressed sensing (CS) framework. This paper reviews the underlying sparsity-driven algorithms for single-channel as well as polarimetric tomography, and ...
Nannini, Matteo, Aguilera, Esteban, Andreas, Reigber   +2 more
core  

A New Coherent Similarity Measure for Temporal Multichannel Scene Characterization [PDF]

, 2012
International audienceThis paper proposes a new method for a measure of coherent similarity between temporal multichannel synthetic aperture radar (SAR) images and its implementation to change detection application.
Ferro-Famil, Laurent, Reigber, Andreas, Erten, Esra, Hellwich, Olaf   +3 more
core   +1 more source

Microwave Vision Three-dimensional SAR Experimental System and Full-polarimetric Data Processing Method

Leida xuebao
Three-Dimensional (3D) Synthetic Aperture Radar (SAR) holds great potential for applications in fields such as mapping and disaster management, making it an important research focus in SAR technology. To advance the application and development of 3D SAR,
Xiaolan QIU, Yitong LUO, Shujie SONG, Lingxiao PENG, Yao CHENG, Qiancheng YAN, Songtao SHANGGUAN, Zekun JIAO, Zhe ZHANG, Chibiao DING   +9 more
doaj   +1 more source

Broadband Near‐Field Computational Microwave Imaging Enabled by Nonperiodic Dispersive Unit‐Cell Loading in a Passive Metasurface

Advanced Electronic Materials, EarlyView.
A compact passive engineered surface converts changes in microwave frequency into many distinct illumination patterns, allowing nearby objects to be imaged without mechanical scanning, active tuning, or a large antenna array. Operating from 18 to 28 GHz, the single‐port system uses measured field patterns to reconstruct metallic targets and distinguish
Mohammed H. Arif, Firas Slewa Dawod, Henrik Jansen, Caner Kadıoğlu, Sayan Roy, Dirk Heberling, Renato Negra   +6 more
wiley   +1 more source

Polarimetric Differential-TomoSAR Imaging [PDF]

, 2010
Recently, in parallel to the maturation of the operative InSAR techniques based on phase-only data, much interest has grown in techniques based on the coherent combination of SAR images at the complex (amplitude and phase) data level, for the extraction ...
Pardini, Matteo, Lombardini, Fabrizio, Cai, Francesco   +2 more
core  

Estimation of glacier ice extinction using long-wavelength airborne Pol-InSAR [PDF]

, 2013
In recent years there has been increased interest in using synthetic aperture radar (SAR) to study and monitor glaciers and ice sheets for glaciological and climate change research.
Sharma, Jayanti, Hajnsek, Irena, Moreira, Alberto, Papathanassiou, Konstantinos   +3 more
core   +1 more source

AI‐Powered Smart Displays and AR Glasses: Perspectives and Challenges

Advanced Intelligent Systems, EarlyView.
This perspective examines how AI is reshaping smart displays and AR glasses. The latest in image‐quality enhancement, sensor‐integrated display optimization, and physiological sensing in display systems, followed by AI‐assisted AR technologies including waveguide optimization, image compensation, foveated rendering, and multimodal sensing, is discussed.
Luke Benoit, Yizhou Qian, Yi‐Chien Chen, Ziyang Shen, Po‐Sheng Chiu, Youngeon Lee, Cheng‐Han Ke, Chih‐Lung Lin, Shin‐Tson Wu   +8 more
wiley   +1 more source

Integrated Polarimetric Spectral Imaging Sensor Combining Spectral Imaging and Polarization Modulation Techniques

Sensors
Polarimetric spectral imaging systems have unique application advantages in environmental remote sensing, military target recognition, astronomy, medicine, etc., because of their ability to acquire multidimensional information.
Zihao Liu, Zhiping Song, Zhengqiang Li, Li Li   +3 more
doaj   +1 more source

Oil Spill Discrimination by Using General Compact Polarimetric SAR Features

Remote Sensing, 2020
Ocean surveillance is one of the important applications of synthetic aperture radar (SAR). Polarimetric SAR provides multi-channel information and shows great potential for monitoring ocean dynamic environments.
Junjun Yin, Jian Yang, Liangjiang Zhou, Liying Xu   +3 more
doaj   +1 more source

Flexible circularly polarized light detection enabled by supramolecular chiral assembly within bulk heterojunctions

FlexMat, EarlyView.
A supramolecular chiral induction and confined capillary‐bridge assembly enables flexible CPL photodetectors with high dissymmetry (gph, max = 0.4 at 850 nm) and broadband activity (300–1100 nm). The resulting devices exhibit low dark current, high detectivity and fast response, with stable imaging even under 30% strain, offering a robust platform for ...
Wen Wang, Rui Li, Yilin Feng, Zhongyuan Wu, Yong Shu, Ying Chao Lai, Xiang Ao, Hanfei Gao, Yuchen Yue, Yuchen Qiu, Lei Jiang, Yuchen Wu   +11 more
wiley   +1 more source