Results 1 to 10 of about 7,458 (144)
Architecture Exploration of a Backprojection Algorithm for Real-Time Video SAR [PDF]
Sensors, 2021 This paper explores novel architectures for fast backprojection based video synthetic aperture radar (BP-VISAR) with multiple GPUs. The video SAR frame rate is analyzed for non-overlapped and overlapped aperture modes.
Seokwon Lee +4 more
doaj +8 more sources
A Novel Guided Anchor Siamese Network for Arbitrary Target-of-Interest Tracking in Video-SAR [PDF]
Remote 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 +7 more sources
ShadowDeNet: A Moving Target Shadow Detection Network for Video SAR [PDF]
Remote Sensing, 2022 Most existing SAR moving target shadow detectors not only tend to generate missed detections because of their limited feature extraction capacity among complex scenes, but also tend to bring about numerous perishing false alarms due to their poor ...
Jinyu Bao +3 more
doaj +5 more sources
Ground Moving Target Tracking and Refocusing Using Shadow in Video-SAR
Remote Sensing, 2020 Stable and efficient ground moving target tracking and refocusing is a hard task in synthetic aperture radar (SAR) data processing. Since shadows in video-SAR indicate the actual positions of moving targets at different moments without any displacement ...
Xiaqing Yang +6 more
doaj +4 more sources
Unsupervised Image Registration for Video SAR [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Existing approaches for SAR image registration focus on the global transformation correction between SAR images. However, there are often local deformations between images.
Xuejun Huang, Jinshan Ding, Qinghua Guo
doaj +3 more sources
SAR Analysis for Real Video Super- Resolution Improvement [PDF]
IEEE Access, 2020 This paper presents a simultaneous autoregressive (SAR) analysis method to describe the unknown signal-to-noise ratio (SNR) and the texture feature of low-quality real video frames when the ground-truth images are not available.
Shi Li +4 more
doaj +3 more sources
Tsinghua Science and Technology, 2022 This study investigates the different aspects of multimedia computing in Video Synthetic Aperture Radar (Video-SAR) as a new mode of radar imaging for real-time remote sensing and surveillance.
Mohammad R. Khosravi, Sadegh Samadi
doaj +3 more sources
Generalized Persistent Polar Format Algorithm for Fast Imaging of Airborne Video SAR
Remote Sensing, 2023 As a cutting-edge research direction in the field of radar imaging, video SAR has the capability of high-resolution and persistent imaging at any time and under any weather.
Jiawei Jiang +3 more
doaj +3 more sources
Video SAR Moving Target Detection Using Dual Faster R-CNN
IEEE 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 +3 more sources
Joint autofocus and registration for video-SAR by using sub-aperture point cloud
International Journal of Applied Earth Observations and Geoinformation, 2023 Due to the existence of antenna phase center (APC) error, drift occurs on the sequence of images acquired by video-SAR back projection (BP) algorithm with respect to a fixed coordinate system. Theoretical analysis shows that the drift is directly related
Jun Shi +7 more
doaj +3 more sources