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arXiv 2021年

作者： Upendra, Roshan Reddy Wentz, Brian Jamison Simon, Richard Shontz, Suzanne M. Linte, Cristian A. Center for Imaging Science Rochester Institute of Technology RochesterNY United States Biomedical Engineering Rochester Institute of Technology RochesterNY United States Bioengineering Graduate Program University of Kansas LawrenceKS United States Electrical Engineering and Computer Science University of Kansas LawrenceKS United States Information and Telecommunication Technology Center University of Kansas LawrenceKS United States

Patient-specific left ventricle (LV) myocardial models have the potential to be used in a variety of clinical scenarios for improved diagnosis and treatment plans. Cine cardiac magnetic resonance (MR) imaging provides high resolution images to reconstruct patient-specific geometric models of the LV myocardium. With the advent of deep learning, accurate segmentation of cardiac chambers from cine cardiac MR images and unsupervised learning for image registration for cardiac motion estimation on a large number of image datasets is attainable. Here, we propose a deep leaning-based framework for the development of patient-specific geometric models of LV myocardium from cine cardiac MR images, using the Automated Cardiac Diagnosis Challenge (ACDC) dataset. We use the deformation field estimated from the VoxelMorph-based convolutional neural network (CNN) to propagate the isosurface mesh and volume mesh of the end-diastole (ED) frame to the subsequent frames of the cardiac cycle. We assess the CNN-based propagated models against segmented models at each cardiac phase, as well as models propagated using another traditional nonrigid image registration technique. © 2021, CC BY.

关键词： Image registration

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BEM: A Framework based on Business Intelligence, Quality of Experience, and Car Park Management

BEM: A Framework based on Business Intelligence, Quality of ...

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International Conference on Systems, Signals and Image Processing, IWSSIP

作者： Adriel Santos Araujo Bruno Câmara Flavio Docek Lucas Gaspar Yona Lopes Computing Institute Universidade Federal Fluminense (UFF) Niterói Brazil Computer Engineering Instituto INFNET Rio de Janeiro Brazil Electrical and Telecommunication Engineer Graduate Program Universidade Federal Fluminense (UFF) Niterói Brazil

The following topics are dealt with: learning (artificial intelligence); medical image processing; feature extraction; image classification; convolutional neural nets; image segmentation; neural nets; cancer; diseases... 详细信息

ISBN: (数字)9781728175393

ISBN: (纸本)9781728175409

关键词： Automobiles Business intelligence Smart cities Cameras Quality of experience Sensors Servers

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A Survey of In-Flight Connectivity Implementation in Indonesia

A Survey of In-Flight Connectivity Implementation in Indones...

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IEEE Asia Pacific Conference on Wireless and Mobile

作者： Rafidah Marlasari Muhammad Imam Nashiruddin Nachwan Mufti Adriansyah Graduate Program in Regulation and Management of Telecommunication School of Electrical Engineering Telkom University Bandung Indonesia Center for Regulation and Management of Telecommunication (CRMT) School of Electrical Engineering Telkom University Bandung Indonesia

Inmarsat Global survey in 2016 already found that on any flight length, the majority of passengers around 54% prefer to have the option of in-flight Wi-Fi. Rest of it, over 16% choosing In-Flight Entertainment (IFE), 19% choosing meal, and 7% choosing duty-free. As time goes by, the procurement of In-Flight Connectivity (IFC) is increasingly becoming a focus for the aviation industry. So far, IFC services provide through satellite and direct Air-to-Ground (ATG) technology. High interest in onboard connectivity makes the procurement also expand from the international route flights to the domestic route flights. A large number of passengers makes Indonesia have a bright future to develop IFC. 2 Indonesian airlines already begin to provide IFC. Although not specific on IFC, Indonesia already has a precise regulation that allows foreign satellite as a provider of IFC. Involving related companies such as operator or tower provider company to build a new independent ATG network for Indonesia shows opportunity. By considering the current state, the author analyzes the opportunities and challenges of IFC development in Indonesia in terms of market, network, regulation, and related company as players.

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Standing Assistance Control based on Voluntary Body Movement within Safety Tolerance

Standing Assistance Control based on Voluntary Body Movement...

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International Workshop on Advanced Motion Control (AMC)

作者： Daisuke Chugo Masahiro Yokota Satoshi Muramatsu Sho Yokota Jin-Hua She Hiroshi Hashimoto Takahiro Katayama Yasuhide Mizuta Atsushi Koujina Graduate School of Science and Technology Kwansei Gakuin University Sanda Hyogo Japan School of Science and Information and Telecommunication Engineering Tokai University Hiratsuka Kanagawa Japan Faculty of Science and Engineering Toyo University Kawagoe Saitama Japan School of Engineering Tokyo University of Technology Hachioji Tokyo Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology Shinagawa Tokyo Japan Service Robot Division RT.WORKS CO. LTD Osaka Japan

ISBN: (数字)9781728131894

ISBN: (纸本)9781728131900

This paper proposes a novel standing assistance robot, which considers the posture tolerance of its user. In previous studies, conventional assistive robots did not require patients to use their own physical strength to stand, which leads to decreased strength in the elderly. Therefore, an assistive robot that allows patients to maximally use the physical strength they possess is required. To realize this objective, it is important that a robot assists patients according to their body movement and by their intentions. However, in previous studies, general assistive robots helped patients by using a fixed motion reference pathway in spite of their original intention, and as a result, these robots failed to use the physical strength of the patients. In our previous study, we investigated the posture tolerance during a standing motion. In this tolerance, patients could stand by own muscle strength with stable posture. Thus, as the next step, this paper proposes assistance force control scheme which considers the investigated posture tolerance. Our robot generated assistance force, which lead the voluntary movement with their remaining physical strength within investigated range, by combining position control and force control. A prototype assistive robot, based on the proposed idea was fabricated to help patients stand up safely using the maximum of their remaining physical strength.

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A comparative study for radioelectric coverage models applied to mobile communicaton systems performance analysis 8

A comparative study for radioelectric coverage models applie...

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8th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2018

作者： Reis, Alysson Lourenco Do Rego, Cassio Goncalves Lopez, Diego Camilo Tami Nunes, Marcelo Lucio Regional Management of Minas Gerais Brazilian National Telecommunication Agency Anatel Graduate Program in Electrical Engineering Federal University of Minas Gerais UFMG Belo Horizonte Brazil Graduate Program in Electrical Engineering Federal University of Minas Gerais UFMG Belo Horizonte Brazil Regional Management of Minas Gerais Brazilian National Telecommunication Agency Anatel Belo Horizonte Brazil

ISBN: (纸本)9781538667651

The highlight of this paper is to find the best performance provided by a certain propagation model indicated by the correlational analysis between predicted data and field measurements. An analysis of the radio coverage for mobile networks was made, based on base station parameters provided by mobile system operator in the system of the Brazilian National telecommunication Agency (Anatel). Due to the availability of high resolution data for the representation of the environment, it was possible to perform a comparative analysis of different prediction models associated to diffraction methods. Still was performed a massive measurement campaign followed by data treatment, for support an accurate comparative analysis of radio propagation effects. © 2018 IEEE.

关键词： Diffraction

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Fast Adaptive Algorithm for Sinusoidal Interference Cancellation

Fast Adaptive Algorithm for Sinusoidal Interference Cancella...

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International Electrical engineering Congress (iEECON)

作者： Aphirak Thitinauremit Rachu Punchalard The Electrical Engineering Graduate Program Mahanakorn University of Technology Bangkok Thailand Telecommunication Engineering Department Mahanakorn University of Technology Bangkok Thailand

ISBN: (纸本)9781538623183;9781538623176

A fast adaptive method to eliminate a single sinusoidal interference of known frequency is proposed. The coupled-oscillator is used to generate the reference signal instead of look-up table. Unlike the least mean square (LMS) based adaptive algorithm, the weighted least squared error criterion is employed instead to evaluate the system parameters. It has been shown that the proposed method can quickly eliminate unwanted interference as compared to previous methods, Moreover, the extensive simulations have been done and revealed that proposed algorithm yields a constant output signal to interference ratio (SIR) of about 20 dB regardless of input SIR.

关键词： Adaptive algorithms Interference cancellation Table lookup Convergence Signal processing algorithms Simulation

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A comparative study for radioelectric coverage models applied to mobile communicaton systems performance analysis

A comparative study for radioelectric coverage models applie...

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IEEE-APS Conference on Antennas and Propagation for Wireless Communications

作者： Alysson Lourenço Reis Cássio Gonçalves do Rego Diego Camilo Tami Lopez Marcelo Lúcio Nunes Regional Management of Minas Gerais Brazilian National Telecommunication Agency Anatel Graduate Program in Electrical Engineering Federal University of Minas Gerais UFMG Belo Horizonte Brazil Graduate Program in Electrical Engineering Federal University of Minas Gerais UFMG Belo Horizonte Brazil Regional Management of Minas Gerais Brazilian National Telecommunication Agency Anatel Belo Horizonte Brazil

关键词： Diffraction Correlation Analytical models Communications technology Data models Antenna measurements Predictive models

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Channel Characterization on Vehicle to Infrastructure Scenarios in 5.8 GHz

Channel Characterization on Vehicle to Infrastructure Scenar...

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IEEE MTT-S Latin America Microwave Conference (LAMC)

作者： F. J. Oliveira P. V. G. Castellanos L. J. Matos W. D. T. Meza L. A. R. Silva Mello Graduate Program in Electrical and Telecommunications Engineering Fluminense Federal University Niterói Brazil Professional Academic School of Electronics and Telecommunicatons Engineering Universidad ALAS Peruanas Lima Peru Center of Telecommunication Pontifical Catholic University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9781538673348;9781538673331

This paper deals with the narrowband and wideband characterization of a vehicle-to-infrastructure channel at 5.8 GHz frequency for short distances. Measurements were carried out in Niterói, Rio de Janeiro, Brazil and the data were processed in order to analyze the coverage of the signal and some channel dispersion parameters. For such results, prediction models were fitted to the data besides the small-scale fading statistics and the analysis of mean and delay spread. The better fit to narrowband data was Log-Distance model. Rice distribution showed the best adherence to the small-scale variability and the maximum delay spread was 1.65 microseconds.

关键词： Delays Receivers Narrowband Wideband Transmitters Antenna measurements Antennas

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A high-order log barrier-based mesh generation and warping method

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Procedia engineering 2017年 203卷 180-192页

作者： Mike Stees Suzanne M. Shontz Department of Electrical Engineering and Computer Science Information and Telecommunication Technology Center The University of Kansas Lawrence KS 66045 USA Department of Electrical Engineering and Computer Science Bioengineering Graduate Program Information and Telecommunication Technology Center The University of Kansas Lawrence KS 66045 USA

The ability to generate high-order meshes that conform to the boundary of curved geometries is a hurdle in the adoption of high-order computational methods for the numerical solution of partial differential equations. In this paper, we propose a method for generating and warping second-order Lagrange triangular and tetrahedral meshes based on a log barrier method. In the case of generation, the approach consists of modifying an initial linear mesh by first, adding nodes at the midpoint of each edge; second, displacing the newly added boundary midpoints to the curved boundary, and third, solving for the final positions of the interior nodes based on the boundary deformation. By allowing all of the boundary nodes to move, the approach can also be used to warp second-order triangular and tetrahedral meshes. We present several numerical examples in both two and three dimensions which demonstrate the capabilities of our method in generating and warping second-order curvilinear meshes.

关键词： high-order mesh generation curvilinear high-order mesh high-order mesh warping numerical optimization

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Enhanced Power Saving Mechanism for Supporting Broadcast/Multicast Services in IEEE 802.11 Wireless LANs

Enhanced Power Saving Mechanism for Supporting Broadcast/Mul...

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International Conference on Electrical engineering/Electronics, Computer, telecommunications and Information Technology

作者： Ploynatcha Akkaraputtipat Attaphon Phayak Thawatchai Mayteevarunyoo Prawit Chumchu Electrical Engineering Graduate Program Mahanakorn University of Technology Department of Telecommunication Engineering Mahanakorn University of Technology Faculty of Engineering at Si Racha Kasetsart University Sriracha Campus

ISBN: (纸本)9781467397506

In this paper, we present an extension of IEEE 802.11 power save mode standard to provide better performance for delivering broadcast and multicast traffic. The proposed protocol utilizes network coding and adaptive forward error correction to improve the performance in terms of delay and error rate. To employ the network coding and adaptive forward error correction, IEEE 802.11 frame format will be redefined. However, the proposed protocol is still compatible to legacy stations. The simulation in NS-3 has been implemented to illustrate the performance of the proposed protocol compared to the standard. It has been shown that the performance is better than the standard in terms of end-to-end delay and packet error rate.

关键词： Power Save Mode PSM NS-3 IEEE 802.11 Simulator Network Coding Adaptive forward error correction

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