Results 11 to 20 of about 36,945 (215)

Ultrasound synthetic aperture non-line-of-sight imaging [PDF]

Communications Physics
Non-line-of-sight (NLOS) imaging typically relies on the use of ultrashort laser pulses and time-resolved detection to then reconstruct 3D environments that are hidden from the direct line-of-sight.
Tailin Li, Ilya Starshynov, Khaled Kassem, Zongliang Xie, Ge Ren, Yihan Luo, Daniele Faccio   +6 more
doaj   +2 more sources

Focus Measure for Synthetic Aperture Imaging Using a Deep Convolutional Network

IEEE Access, 2019
Synthetic aperture imaging is a technique that mimics a camera with a large virtual convex lens with a camera array. Objects on the focal plane will be sharp and off the focal plane blurry in the synthesized image, which is the most important effect that
Zhao Pei, Li Huang, Yanning Zhang, Miao Ma, Yali Peng, Yee-Hong Yang   +5 more
doaj   +1 more source

InSAR as a tool for monitoring hydropower projects: A review

Energy Geoscience, 2022
This paper provides a review of using Interferometric Synthetic Aperture Radar (InSAR), a microwave remote sensing technique, for deformation monitoring of hydroelectric power projects, a critical infrastructure that requires consistent and reliable ...
J. Aswathi, R.B. Binoj Kumar, T. Oommen, E.H. Bouali, K.S. Sajinkumar   +4 more
doaj   +1 more source

Airborne Circularly Polarized Synthetic Aperture Radar

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, airborne broadband (maximum 400 MHz bandwidth) C-band circularly polarized synthetic aperture radar (SAR) is proposed and developed for further study on airborne compact polarized synthetic aperture radar (CP SAR) system using circular ...
Josaphat Tetuko Sri Sumantyo, Ming Yam Chua, Cahya Edi Santosa, Good Fried Panggabean, Tomoro Watanabe, Bambang Setiadi, Fransiskus Dwikoco Sri Sumantyo, Kengo Tsushima, Karna Sasmita, Agus Mardiyanto, Edy Supartono, Eko Tjipto Rahardjo, Gunawan Wibisono, Muh Aris Marfai, Retnadi Heru Jatmiko, h Sudaryatno, Taufik Hery Purwanto, Barandi Sapta Widartono, Muhammad Kamal, Daniele Perissin, Steven Gao, Koichi Ito   +21 more
doaj   +1 more source

Hybrid Dual-Polarization Synthetic Aperture Radar

Remote Sensing, 2019
Compact polarimetry for a synthetic aperture radar (SAR) system is reviewed. Compact polarimetry (CP) is intended to provide useful polarimetric image classifications while avoiding the disadvantages of space-based quadrature-polarimetric (quad-pol) SARs.
R. Keith Raney
doaj   +1 more source

A New Classification Approach with Deep Mask R-CNN for Synthetic Aperture Radar Image Segmentation

Elektronika ir Elektrotechnika, 2020
In this paper, a hybrid classification approach which is combined with a more deep mask region-convolutional neural network and sparsity driven despeckling algorithm is proposed for synthetic aperture radar (SAR) image segmentation instead of the ...
Ridvan Yayla, Baha Sen
doaj   +1 more source

A Novel Attention Fully Convolutional Network Method for Synthetic Aperture Radar Image Segmentation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
As an important step of synthetic aperture radar image interpretation, synthetic aperture radar image segmentation aims at segmenting an image into different regions in terms of homogeneity.
Zhenyu Yue, Fei Gao, Qingxu Xiong, Jun Wang, Amir Hussain, Huiyu Zhou   +5 more
doaj   +1 more source

Three-Dimensional Imaging of Circular Array Synthetic Aperture Sonar for Unmanned Surface Vehicle

Sensors, 2022
Synthetic aperture sonar (SAS) and interferometric synthetic aperture sonar (InSAS) have a range layover phenomenon during underwater observation, the AUV-mounted circular synthetic aperture sonar (CSAS) system, that insonifies targets using multiple ...
Sai Zeng, Wei Fan, Xuanmin Du
doaj   +1 more source

Autonomous Navigation Airborne Forward-Looking SAR High Precision Imaging with Combination of Pseudo-Polar Formatting and Overlapped Sub-Aperture Algorithm

Remote Sensing, 2013
Autonomous navigation airborne forward-looking synthetic aperture radar (SAR) observes the anterior inferior wide area with a short cross-track dimensional linear array as azimuth aperture.
Xueming Peng, Yanping Wang, Wen Hong, Weixian Tan, Yirong Wu   +4 more
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Evaluation of the change in synthetic aperture radar imaging using transfer learning and residual network

Компьютерная оптика, 2021
Change detection from synthetic aperture radar images becomes a key technique to detect change area related to some phenomenon as flood and deformation of the earth surface.
I. Hamdi, Y. Tounsi, M. Benjelloun, A. Nassim   +3 more
doaj   +1 more source