Results 1 to 10 of about 1,446 (166)
Moving Target Shadow Analysis and Detection for ViSAR Imagery [PDF]
Remote Sensing, 2021 The video synthetic aperture radar (ViSAR) is a new application in radar techniques. ViSAR provides high- or moderate-resolution SAR images with a faster frame rate, which permits the detection of the dynamic changes in the interested area.
Zhihuahe He, Tianzhu Yi, Zhen Dong
exaly +4 more sources
VISAR diagnostic at LIL facility [PDF]
EPJ Web of Conferences, 2013 A Velocity Interferometer for Any Reflector (VISAR) [1, 2] and a Streaked Optical Pyrometer (SOP) [3] were implemented on the “Ligne integration Laser” (LIL) facility.
Darbon S. +12 more
doaj +2 more sources
A Novel Generation Method of High Quality Video Image for High Resolution Airborne ViSAR
Remote Sensing, 2021 Video synthetic aperture radar (ViSAR) can provide long-time surveillance of a region of interest (ROI), which is one of the hotspot directions in the SAR field. In order to better display ViSAR, a high resolution and high frame rate are needed.
Daoxiang An, Dong Feng, Leping Chen
exaly +3 more sources
Implementation Method of Automotive Video SAR (ViSAR) Based on Sub-Aperture Spectrum Fusion
Remote Sensing, 2023 The automotive synthetic aperture radar (SAR) can obtain two-dimensional (2-D) high-resolution images and has good robustness compared with the other sensors.
Shiyang Tang, Changjie Liu
exaly +3 more sources
Automated pause analysis of connected speech from story recall as markers of cognitive decline [PDF]
Alzheimers DementAbstract Background Subtle speech features, like pausing, are sensitive to Alzheimer's disease (AD) PET biomarkers. Our previous work showed that silent pauses in Cookie Theft (CT) picture descriptions collected via an acoustic and automatized method differentiated cognitively unimpaired (CU) from cognitively impaired participants The impaired group ...
Hale M +10 more
europepmc +3 more sources
Common Endpoints in Studies of Image-Based Guidance in External Ventricular Drain Placement: A Scoping Review. [PDF]
Brain BehavWhen exploring EVD placement safety, accuracy, and efficiency comparing image‐guided techniques and freehand techniques, incorporating standardized endpoints and addressing gaps from past studies will help guide the design of future studies to optimize results translatable to improving patient outcomes.
Bohner A +4 more
europepmc +2 more sources
VISAR Analysis in the Frequency Domain
Journal of Dynamic Behavior of Materials, 2017 VISAR measurements are typically analyzed in the time domain, where velocity is approximately proportional to fringe shift. Moving to the frequency domain clarifies the limitations of this approximation and suggests several improvements. For example, optical dispersion preserves high-frequency information, so a zero-dispersion (air delay ...
Daniel Dolan
exaly +3 more sources
High-Precision Moving Target Shadow Detection Algorithm for ViSAR Based on Information Geometry
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingVideo synthetic aperture radar (ViSAR) attracts much attention in the field of moving target detection due to its high frame rate and high-resolution imaging capability.
Yaowen Fu, Ruofeng Yu, Wei Yang
exaly +3 more sources
Dysarthria detection based on a deep learning model with a clinically-interpretable layer [PDF]
JASA Express Letters, 2023 Studies have shown deep neural networks (DNN) as a potential tool for classifying dysarthric speakers and controls. However, representations used to train DNNs are largely not clinically interpretable, which limits clinical value.
Lingfeng Xu, Julie Liss, Visar Berisha
doaj +1 more source