Results 111 to 120 of about 15,115 (213)

State and trait characteristics of anterior insula time-varying functional connectivity. [PDF]

, 2020
The human anterior insula (aINS) is a topographically organized brain region, in which ventral portions contribute to socio-emotional function through limbic and autonomic connections, whereas the dorsal aINS contributes to cognitive processes through ...
Allen, Isabel, Battistella, Giovanni, Borghesani, Valentina, Brown, Jesse A, Cobigo, Yann, Deng, Jersey, Gorno-Tempini, Maria Luisa, Kramer, Joel, Kurcyus, Katarzyna, Lee, Alex, Miller, Bruce L, Pasquini, Lorenzo, Rankin, Katherine P, Rosen, Howard H, Seeley, William W, Shdo, Suzanne M, Staffaroni, Adam, Sturm, Virginia E, Toller, Gianina   +18 more
core  

GigaRad – a multi-purpose high-resolution ground-based radar system [PDF]

, 2014
Recently DLR has developed and constructed a new experimental radar instrument for various applications like radar signature collection, SAR/ISAR imaging, motion detection, tracking, etc., where high performance and high flexibility have been the key ...
Anger, Simon, Iff, Sebastian, Jirousek, Matthias, Peichl, Markus   +3 more
core  

SR-DNnet: A Deep Network for Super-Resolution and De-Noising of ISAR Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Inverse synthetic aperture radar (ISAR) images have become one of the most important pieces of information for airborne and maritime target identification.
Fengkai Liu, Darong Huang, Xinrong Guo, Cunqian Feng   +3 more
doaj   +1 more source

Quick X-ray microtomography using a laser-driven betatron source

, 2017
Laser-driven X-ray sources are an emerging alternative to conventional X-ray tubes and synchrotron sources. We present results on microtomographic X-ray imaging of a cancellous human bone sample using synchrotron-like betatron radiation.
Ding, H., Döpp, A., Gilljohann, M., Goetzfried, J., Hehn, L., Karsch, S., Pfeiffer, F., Schindler, S., Wenz, J.   +8 more
core   +1 more source

Enhancment of dense urban digital surface models from VHR optical satellite stereo data by pre-segmentation and object detection [PDF]

, 2010
The generation of digital surface models (DSM) of urban areas from very high resolution (VHR) stereo satellite imagery requires advanced methods. In the classical approach of DSM generation from stereo satellite imagery, interest points are extracted and
Krauß, Thomas, Reinartz, Peter
core  

High-Resolution ISAR Imaging with Modified Joint Range Spatial-Variant Autofocus and Azimuth Scaling. [PDF]

Sensors (Basel), 2020
Wei J, Shao S, Ma H, Wang P, Zhang L, Liu H.   +5 more
europepmc   +1 more source

Self-Supervised-ISAR-Net Enables Fast Sparse ISAR Imaging

IEEE Transactions on Aerospace and Electronic Systems
Numerous sparse inverse synthetic aperture radar (ISAR) imaging methods based on unfolded neural networks have been developed for high-quality image reconstruction with sparse measurements. However, their training typically requires paired ISAR images and echoes, which are often difficult to obtain.
Ziwen Wang, Jianping Wang, Pucheng Li, Yifan Wu, Zegang Ding   +4 more
openaire   +2 more sources

ISAR Imaging Analysis of Complex Aerial Targets Based on Deep Learning

Applied Sciences
Traditional range–instantaneous Doppler (RID) methods for maneuvering target imaging are hindered by issues related to low resolution and inadequate noise suppression.
Yifeng Wang, Jiaxing Hao, Sen Yang, Hongmin Gao   +3 more
doaj   +1 more source

ISAR imaging Based on the Empirical Mode Decomposition Time-Frequency Representation

, 2016
International audienceThis work proposes an adaptation of the Empirical Mode Decomposition Time-Frequency Distribution (EMD-TFD) to non-analytic complex-valued signals.
Cexus, Jean-Christophe, Comblet, Fabrice, Couderc, Orian, Khenchaf, Ali, Toumi, Abdelmalek   +4 more
core   +1 more source

ISAR imaging and motion compensation

, 2020
ABSTRACTISAR IMAGING AND MOTION COMPENSATIONKüçükkılıç, TalipM.S., Department of Electrical and Electronics EngineeringSupervisor: Prof. Dr. Gülbin DuralDecember 2006, 167 pagesIn Inverse Synthetic Aperture Radar (ISAR) systems the motion of the target can beclassified in two main categories: Translational Motion and Rotational Motion. Asmall degree of
openaire   +1 more source