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A First Experiment of 3D Imaging with a Ground based Parasitic SAR
2006
2006 IEEE International Symposium on Geoscience and Remote Sensing
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The present paper provides the first example of 3D imaging using the ground based parasitic SAR instrument developed in the past years at Politecnico di Milano. ...
Prati that guided the whole research work carried out in the framework of the parasitic SAR project. Ing. M. ...
All members of the TDP unit, especially Dr. D. Tarchi and Dr. D. Leva, are also gratefully acknowledged. Ing. L. Tonini contributed to the generation of the focused 3D images. Eutelsat (Mr. G. ...
doi:10.1109/igarss.2006.308
dblp:conf/igarss/ColesantiP06
fatcat:7dledhogqzhkdn46qrlm6a52x4
A W-Band 3-D Integrated Mini-SAR System with High Imaging Resolution on UAV Platform
2020
IEEE Access
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In this paper, a W-band compact SAR system is proposed, which has been successfully deployed on the unmanned aerial vehicle (UAV) platform demonstrating state-of-the-art imaging resolution of about 4.5 ...
To validate this proposed idea, a UAV SAR prototype operating at W-band is designed and fabricated. The measurements show great signal-to-noise ratio imaging results with excellent focusing effect. ...
Since 1997, he has been with the Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, where he is currently a Research Fellow and the Vice Director. ...
doi:10.1109/access.2020.3003273
fatcat:yzzfjwfdyreornob3rvqorcyyu
A Front-End ASIC With High-Voltage Transmit Switching and Receive Digitization for 3-D Forward-Looking Intravascular Ultrasound Imaging
2018
IEEE Journal of Solid-State Circuits
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Finally, a 3D ultrasound image of a 3-needle phantom is generated to demonstrate the imaging capability. ...
The ASIC is intended to be mounted at the tip of a catheter, and has a circular active area with a diameter of 1.5 mm on top of which a 2D array of piezo-electric transducer elements is integrated. ...
The effectiveness of these techniques has been successfully demonstrated in a 3D ultrasound imaging experiment. This is the author's version of an article that has been published in this journal. ...
doi:10.1109/jssc.2018.2828826
fatcat:r2srhl7v5nesbkbw5udf6plqga
Full Ground Ultra-Wideband Wearable Textile Antenna for Breast Cancer and Wireless Body Area Network Applications
2021
Micromachines
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A full ground ultra-wideband (UWB) antenna is proposed and utilized here to attain a broad bandwidth while keeping SAR in the acceptable range based on both 1 g and 10 g standards. ...
Most wearable antennas use a truncated ground, which increases specific absorption rate (SAR) undesirably. ...
Conflicts of Interest: The authors declare no conflict of interest. Micromachines 2021, 12, 322 ...
doi:10.3390/mi12030322
pmid:33808523
pmcid:PMC8003189
fatcat:sulunoev2jbcpnd7pskxp6f3qq
Comparison between eight- and sixteen-channel TEM transceive arrays for body imaging at 7 T
2011
Magnetic Resonance in Medicine
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exhibited lower local and global SAR for a given B 1 + . ...
Finite-difference time-domain simulations demonstrated similar results with respect to transmit and parallel imaging performance, however a higher transmit efficiency advantage of 33% was predicted. ...
The original acquisition of the 7 tesla system was funded by the Keck Foundation, NSF grant 9907842 and NIH grant S10-RR1395. ...
doi:10.1002/mrm.23070
pmid:22102483
pmcid:PMC3290686
fatcat:xlqoofal6bcj7az5kmit3nuope
ICMIM 2020 TOC
2020
2020 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM)
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Experimental validations show a behavior backing the suggested technique, and field tests demonstrate a communication area compatible with the real-case scenario usage. ...
Exemplary test results showed an average deviation of less than 91 cm at a range of 100 m between the ground truth and the estimated road course. ...
Firstly, the sub-mm resolution is validated with the experiment after that the range and SAR imaging are performed in which this object is covered with different types of materials. ...
doi:10.1109/icmim48759.2020.9299087
fatcat:3m4rbeocczemranjgyflevdyhi
Integrated Transceivers for Emerging Medical Ultrasound Imaging Devices: A Review
2021
IEEE Open Journal of Solid-State Circuits
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As medical ultrasound imaging moves from conventional cart-based scanners to new form factors such as imaging catheters, hand-held point-of-care scanners and ultrasound patches, there is an increasing ...
It starts with a brief overview of ultrasound transducer technologies and the operating principles of the ultrasound transmit-receive signal path. ...
This helps to reduce the energy spent on charging and discharging parasitic capacitance to ground. ...
doi:10.1109/ojsscs.2021.3115398
fatcat:7kctszp4mrfg5hrmdbsf2ecbdu
Analysis of an Integrated 8-Channel Tx/Rx Body Array for Use as a Body Coil in 7-Tesla MRI
2017
Frontiers in Physics
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First in vivo gradient echo images are acquired with the integrated array. ...
First in vivo images with the integrated array look subjectively promising. ...
For imaging, a gradient echo sequence was used with a TR of 50 ms and a TE of 4.1 ms with a slice thickness of 10 mm. ...
doi:10.3389/fphy.2017.00017
fatcat:ycea6jccendnxgu5bqvan3aw4q
Reengineered helmet coil for human brain studies at 3 Tesla
2005
Concepts in Magnetic Resonance Part B Magnetic Resonance Engineering
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Initial applications in healthy volunteers included anatomical MRI and functional imaging with a cognitive paradigm. ...
We describe the further development of a circularly polarized helmet coil for magnetic resonance imaging (MRI) of the human brain at 3 T. ...
(C) Axial and (D) sagittal experimental MDEFT images obtained at 3 T with an agarose gel phantom showing good homogeneity up to a depth of approximately 20 cm. ...
doi:10.1002/cmr.b.20052
fatcat:5umzz6upkvfqfof3wnlbqacqdm
Non-linear aggregation of filters to improve image denoising
[article]
2020
arXiv
pre-print
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Preliminary filters are aggregated in a non-linear fashion, using a new metric of pixel proximity based on how the pool of filters reaches a consensus. ...
We introduce a novel aggregation method to efficiently perform image denoising. ...
It puts together similar patches (2D fragments of the image) into 3D data arrays (called "groups"). It then produces a 3D estimate by jointly filtering grouped image blocks. ...
arXiv:1904.00865v3
fatcat:mpjjjqgge5hbthuasl7mrflkam
Schistosomiasis Drug Discovery in the Era of Automation and Artificial Intelligence
2021
Frontiers in Immunology
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Schistosomiasis is a parasitic disease caused by trematode worms of the genus Schistosoma and affects over 200 million people worldwide. ...
The control and treatment of this neglected tropical disease is based on a single drug, praziquantel, which raises concerns about the development of drug resistance. ...
We are grateful to ChemAxon and OpenEye Inc. for providing academic license of their software for our projects. ...
doi:10.3389/fimmu.2021.642383
pmid:34135888
pmcid:PMC8203334
fatcat:seva6merzjdmlbm73i77d7rlfy
A 32-channel parallel transmit system add-on for 7T MRI
2019
PLoS ONE
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A 32-channel parallel transmit (pTx) add-on for 7 Tesla whole-body imaging is presented. First results are shown for phantom and in-vivo imaging. ...
The authors thank Kevin Kolpatzeck, Dominik Beyer, Tristan Mathiebe, Jonathan Weine, and Sarah Handtke for help with hardware assembly. ...
Instead, more conservative SAR limits based on amplitude-only supervision were utilized [37] . ...
doi:10.1371/journal.pone.0222452
pmid:31513637
pmcid:PMC6742215
fatcat:oa3hqja5tnawdcdqpb3xhqxe64
4 What is a medical theory?
[chapter]
2005
Studies in Multidisciplinarity
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A physician's representation of dry cough, for example, may be an auditory and visual prototype based on extensive clinical experience with many patients with dry and wet coughs. ...
Px), which say that anyone infected by this parasite gets malaria, and that anyone with malaria has been infected by the parasite. ...
What is a medical theory? 61
AQ: Reference not cited in text. ...
doi:10.1016/s1571-0831(06)80008-0
fatcat:pivevlivqzgnpofgk6sualnhjq
A microfluidics-integrated impedance/surface acoustic resonance tandem sensor
2019
Sensing and Bio-Sensing Research
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A B S T R A C T We demonstrate a dual sensor concept for lab-on-a-chip in-liquid sensing through integration of surface acoustic wave resonance (SAR) sensing with electrochemical impedance spectroscopy ...
In this concept, the EIS is integrated within the building blocks of the SAR sensor, but features a separate electrical port. ...
Acknowledgements We thank Gizem Karabiyik from the University of Oslo for providing the Ca 2+ ...
doi:10.1016/j.sbsr.2019.100291
fatcat:wcsvsa6bqrhm5cdkgqy27uxgzm
Front Matter
2022
2022 International Mobile and Embedded Technology Conference (MECON)
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The conference started with lighting of lamp in the inaugural session on 10th March. ...
The focus of this talk is on a comprehensive review of different methods for malarial parasite detection and classification in blood smear microscopic images. ...
The first category of these methods employs traditional image processing and classical machine learning algorithms. ...
doi:10.1109/mecon53876.2022.9751940
fatcat:7zcotw6g65fnvjjl63pfgvnpy4
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