Results 31 to 40 of about 3,054,526 (166)

S2-PCM: Super-Resolution Structural Point Cloud Matching for High-Accuracy Video-SAR Image Registration

open access: yesRemote Sensing, 2022
In this paper, the super-resolution structural point cloud matching (S2-PCM) framework is proposed for video synthetic aperture radar (SAR) inter-frame registration, which consists of a feature recurrence super-resolution network (FRSR-Net), structural ...
Zhikun Xie   +5 more
doaj   +1 more source

A ViSAR Shadow-Detection Algorithm Based on LRSD Combined Trajectory Region Extraction

open access: yesRemote Sensing, 2023
Shadow detection is a new method for video synthetic aperture radar moving target indication (ViSAR-GMTI). The shadow formed by the target occlusion will reflect its real position, preventing the defocusing or offset of the moving target from making it ...
Zhongzheng Yin, Mingjie Zheng, Yuwei Ren
doaj   +1 more source

High-Precision GPU-Accelerated Simulation Algorithm for Targets under Non-Uniform Cluttered Backgrounds

open access: yesRemote Sensing, 2023
This article presents a high-precision airborne video synthetic aperture radar (SAR) raw echo simulation method aimed at addressing the issue of simulation accuracy in video SAR image generation.
Yongqiang Zhang   +3 more
doaj   +1 more source

Joint Track-Before-Detect Algorithm for High-Maneuvering Target Indication in Video SAR

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Moving target shadows continuously appear in the sequential images produced by video synthetic aperture radar (SAR), which conducts research on shadow-based detection and tracking of moving targets. This article addresses a typical shadow-based detection
Siqi Qin   +3 more
doaj   +1 more source

Location displacement analysis on target height in VideoSAR image sequence

open access: yesThe Journal of Engineering, 2019
Video synthetic aperture radar (VideoSAR) technology, which has fine resolution and high frame rate, is used to obtain the dynamic information of the observation scene.
Ying Zhang   +4 more
doaj   +1 more source

Video SAR Moving Target Detection Using Dual Faster R-CNN

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Video synthetic aperture radar (SAR) has shown great potentials in detection and tracking of slow ground moving targets. The classical shadow-aided detection was applied in video SAR, and most recently, the deep learning approach has been developed for ...
Liwu Wen, Jinshan Ding, Otmar Loffeld
doaj   +1 more source

Fine Imaging Method of THz-ViSAR on Subaperture Range Migration Algorithm and Distinctive-Point Map Drift Algorithm

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Video synthetic aperture radar (SAR) is a new type of synthetic aperture radar. In order to achieve high imaging frame rate, the data collected by video SAR is divided into multiple units for imaging.
Xiaofan Li   +4 more
doaj   +1 more source

A Novel Guided Anchor Siamese Network for Arbitrary Target-of-Interest Tracking in Video-SAR

open access: yesRemote Sensing, 2021
Video synthetic aperture radar (Video-SAR) allows continuous and intuitive observation and is widely used for radar moving target tracking. The shadow of a moving target has the characteristics of stable scattering and no location shift, making moving ...
Jinyu Bao   +4 more
doaj   +1 more source

Spaceborne Video Synthetic Aperture Radar (SAR): A New Microwave Remote Sensing Mode

open access: yes, 2023
The transient information like a ‘picture’ can be obtained by the traditional microwave remote sensing system. It will bring some shortcomings for detection of the moving targets and long-time monitoring of the variational scene over the region of interest.
Jian Liang, Liang An
openaire   +1 more source

A Novel Azimuth Super-Resolution Method by Synthesizing Azimuth Bandwidth of Multiple Tracks of Airborne Stripmap SAR Data

open access: yesSensors, 2016
Azimuth resolution of airborne stripmap synthetic aperture radar (SAR) is restricted by the azimuth antenna size. Conventionally, a higher azimuth resolution should be achieved by employing alternate modes that steer the beam in azimuth to enlarge the ...
Yan Wang   +3 more
doaj   +1 more source

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