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2021 International Symposium ELMAR最新文献

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Wave Propagation Analysis of a Millimeter-Wave Slotted Metallic Waveguide Feed Technique with MOM-GEC Method 用MOM-GEC法分析毫米波狭缝金属波导馈电技术的波传播
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550892
M. Abdi, Raja Mchaalia, T. Aguili
{"title":"Wave Propagation Analysis of a Millimeter-Wave Slotted Metallic Waveguide Feed Technique with MOM-GEC Method","authors":"M. Abdi, Raja Mchaalia, T. Aguili","doi":"10.1109/ELMAR52657.2021.9550892","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550892","url":null,"abstract":"The importance of the millimeter wave spectrum has significantly grown with the launch of the 5G. To utilize the millimeter wave spectrum of 5G efficiently, suitable feeding techniques of microstrip antenna are a natural requirement. In this context, we propose to ensure a comparative study of the wave propagation of a Slotted Waveguide operating in high-frequencies according to boundary conditions applied on the Waveguide walls. The originality of this work is to ensure the electromagnetic study based on the hybridization of the Generalized Equivalent Circuits Method (MGEC) with the Method of Moments (MOM) which is considered among the most interesting integral methods to apply for the study of the electromagnetic aspect on planar structures. In fact, we have proved through this Method that the rise in frequency is accompanied by the existence of propagation losses effects which are justified by the intrinsic impedance applied on the walls of the waveguide that must be taken into account for the Feed Technique Analysis. Numerical results are presented and show a good agreement when compared with HFSS Software.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132856328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Epicardial Adipose Tissue Segmentation from CT Images with A Semi-3D Neural Network 半三维神经网络分割心外膜脂肪组织的CT图像
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550936
Marin Benčević, Marija Habijan, I. Galić
{"title":"Epicardial Adipose Tissue Segmentation from CT Images with A Semi-3D Neural Network","authors":"Marin Benčević, Marija Habijan, I. Galić","doi":"10.1109/ELMAR52657.2021.9550936","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550936","url":null,"abstract":"Epicardial adipose tissue is a type of adipose tissue located between the heart wall and a protective layer around the heart called the pericardium. The volume and thickness of epicardial adipose tissue are linked to various cardiovascular diseases. It is shown to be an independent cardiovascular disease risk factor. Fully automatic and reliable measurements of epicardial adipose tissue from CT scans could provide better disease risk assessment and enable the processing of large CT image data sets for a systemic epicardial adipose tissue study. This paper proposes a method for fully automatic semantic segmentation of epicardial adipose tissue from CT images using a deep neural network. The proposed network uses a U-Net-based architecture with slice depth information embedded in the input image to segment a pericardium region of interest, which is used to obtain an epicardial adipose tissue segmentation. Image augmentation is used to increase model robustness. Cross-validation of the proposed method yields a Dice score of 0.86 on the CT scans of 20 patients.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"41 13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131121326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Doppler Frequency Estimation using Moving Target Detection Filter Bank 基于运动目标检测滤波器组的多普勒频率估计
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550842
P. Sedivy, J. Pidanic
{"title":"Doppler Frequency Estimation using Moving Target Detection Filter Bank","authors":"P. Sedivy, J. Pidanic","doi":"10.1109/ELMAR52657.2021.9550842","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550842","url":null,"abstract":"The paper describes a novel method of discrete angular Doppler frequency and radar target radial velocity component estimation in a pulse Doppler radar system. The method processes output of a Moving Target Detection (MTD) filter bank, and evaluates normalized difference of Doppler channels with the highest amplitudes of a target echo. The proposed method provides reasonable precision, even for quite low SNR. The most significant advantage of the proposed method is resolution capability for multiple targets with close radial velocity within a single space and Doppler resolution cell. The proposed estimator is of low computation complexity.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128554862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Real-Time Detection and Recognition of Cards in the Game of Set 纸牌游戏中纸牌的实时检测与识别
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550996
Hrvoje Ditrih, S. Grgic, Leona Turković
{"title":"Real-Time Detection and Recognition of Cards in the Game of Set","authors":"Hrvoje Ditrih, S. Grgic, Leona Turković","doi":"10.1109/ELMAR52657.2021.9550996","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550996","url":null,"abstract":"This paper aims to present a procedure for real-time detection and recognition of the cards from the card game Set using computer vision techniques. Our approach to recognizing cards in images is done in three steps: segmenting cards from the image, extracting features from card images with horizontal and vertical lines, and card feature classification with support vector machine (SVM). Small number of features are extracted from relatively small subset of pixels to achieve real-time processing.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123599406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extension of Non-Foster-inspired Two-transmitter Matching to Arbitrary Antenna Impedance 非培养启发双发射机匹配到任意天线阻抗的扩展
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550906
S. Hrabar, I. Čavlek, Davorin Mikulić, Srdan Milic, Evita Šopp
{"title":"Extension of Non-Foster-inspired Two-transmitter Matching to Arbitrary Antenna Impedance","authors":"S. Hrabar, I. Čavlek, Davorin Mikulić, Srdan Milic, Evita Šopp","doi":"10.1109/ELMAR52657.2021.9550906","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550906","url":null,"abstract":"A broadband matching of a highly reactive small transmitting antenna is one of the most challenging applications of non-Foster elements. The difficulties are connected to the assurance of stable operation of negative impedance converter in environment with high-power signals. Recently, the instability-free approach that applies quadrature signals at a transmitting short dipole and mimics broadband cancellation with negative capacitor, has been demonstrated. Here, we propose an extension of this approach to emulation of negative inductance, as well as to the most general case of a complex matching with transformation of antenna radiation resistance. Theoretical analysis is complemented with several proof-of-concept experiments in 10-20 MHz HF band.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127102819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An algorithm for Vehicle Distance and Speed Estimation 一种车辆距离和速度估计算法
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550949
Eugen Šimara, M. Herceg, D. Vranješ, Aleksandar Zejak
{"title":"An algorithm for Vehicle Distance and Speed Estimation","authors":"Eugen Šimara, M. Herceg, D. Vranješ, Aleksandar Zejak","doi":"10.1109/ELMAR52657.2021.9550949","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550949","url":null,"abstract":"In this paper, an algorithm for vehicle distance and speed estimation is proposed. In particular, the estimation is performed using video frames obtained from the cameras, located on the front and rear of the car. Moreover, the vehicle detection is performed using a Viola-Jones algorithm, while a Median flow is used for detected vehicle tracking. The speed of the vehicle is calculated using a distance of the detected vehicle and a change in the detected bounding box width between two consecutive frames. The proposed algorithm performance is tested on different car brands, different weather conditions, and different car distances. The testing results of the proposed method show promising results.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117259179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Automotive Radar – Road Boundary Estimation 汽车雷达。道路边界估计
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550950
M. Mandlik, V. Brazda, Martin Paclík, M. Kvičera, Naiallen Carvalho, Tomas Nouza, Ondrej Kozak, C. Sturm
{"title":"Automotive Radar – Road Boundary Estimation","authors":"M. Mandlik, V. Brazda, Martin Paclík, M. Kvičera, Naiallen Carvalho, Tomas Nouza, Ondrej Kozak, C. Sturm","doi":"10.1109/ELMAR52657.2021.9550950","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550950","url":null,"abstract":"The automotive industry is progressively focusing on autonomous driving systems, and there are two main reasons behind that: first, the amount of legislation related to autonomous vehicles is gradually increasing, and second, the OEMs continuously seek to enhance the vehicles safety and comfort. Autonomous Driving Assistant Systems use multiple sensors to sense the 360 degrees all around a vehicle in order to mitigate any risk of collision. One of the key sensors in this field is the radar. This sensor is usually mounted as a front radar to cover the driving direction, or as a corner radar. A radar system can deliver information about stationary or moving targets to a fusion system. The typical interface of radar system is either a user warning alert or an object with properties such as its position, velocity, orientation, its qualities and other parameters. The higher the automation level, the greater the amount of information required by the system. The end user warning functions and tracked objects are a standard kind of information over the years. However, carmakers are currently focusing on low-level fusion and hence require more information and features from the sensors. A typical use case is to deliver the road boundaries over rideable obstacles. Therefore, the aim of this paper is to introduce the guardrail detection techniques with focus on the measurement of a curbstone using the 4D technology.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132015829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Discrete Cosine Transform Hardware Accelerator in Parallel Ultra-low Power System 并联超低功耗系统中的离散余弦变换硬件加速器
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550946
Alen Duspara, M. Kovač, H. Mlinaric
{"title":"Discrete Cosine Transform Hardware Accelerator in Parallel Ultra-low Power System","authors":"Alen Duspara, M. Kovač, H. Mlinaric","doi":"10.1109/ELMAR52657.2021.9550946","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550946","url":null,"abstract":"In this paper, the architecture of a fully pipelined discrete cosine transform ( DCT) hardware accelerator for a JPEG encoder is proposed. The integration of the accelerator into the parallel ultra-low power (PULP) platform is also demonstrated. The accelerator architecture is divided into two one-dimensional transform cores with one transpose buffer between them . With the designed accelerator, it is possible to calculate one 2D DCT operation in 32 cycles with a latency of 80 cycles. The JPEG DCT hardware accelerator is integrated into the PULP cluster as a separate processing element (PE) and successfully implemented on the Xilinx ZC706 evaluation board. The accelerator can achieve the performance of up to 1.78M transformations per second working on the clock frequency of 57 MHz.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126464548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Multi-band Antenna System for Fully Connected Smart E-bicycle 全连接智能电动自行车多波段天线系统
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550900
D. Žanić, R. Gotal, S. Hrabar
{"title":"Multi-band Antenna System for Fully Connected Smart E-bicycle","authors":"D. Žanić, R. Gotal, S. Hrabar","doi":"10.1109/ELMAR52657.2021.9550900","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550900","url":null,"abstract":"This contribution deals with a design of multiband antenna system for smart IoT-inspired E-bicycle. Proposed system should assure reliable various connections of the cycling computer to communication and navigation networks as well as to Internet, in the 1-6 GHz band. Firstly, an initial full- wave EM simulation of a realistic scenario that includes all antennas, a bicycle and a rider is performed in order to select the most appropriate antenna location on the bicycle frame. The simulation results are compared to the associated measurements of a path loss and rider shadowing in anechoic chamber. Upon the simulation and measurement results, the optimal antenna location is chosen and a simple two-radiator array that mitigate shadowing effect is designed, together with associated matching networks. Finally, some possible future research directions, based on inclusion of the cycling computer ground plane as a part of radiating system and additional implementation of non-Foster elements, are highlighted.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114686856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Satellite Insulation Blankets with Conductive Threads Mesh as an Electromagnetic Shield 卫星绝缘毯与导电螺纹网状作为电磁屏蔽
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550875
K. Malaric, B. Šaravanja, T. Pušić
{"title":"Satellite Insulation Blankets with Conductive Threads Mesh as an Electromagnetic Shield","authors":"K. Malaric, B. Šaravanja, T. Pušić","doi":"10.1109/ELMAR52657.2021.9550875","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550875","url":null,"abstract":"This paper describes the insulation blankets of the satellites with conductive threads used for electrostatic discharge (ESD) protection. Insulation blankets are usually used for thermal protection. However, conductive thread can protect satellites form ESD as well. Using conductive threads mesh can protect the satellite as well from the electromagnetic fields on microwave frequencies.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126579923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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