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An Overview of Facial Micro-Expression Analysis: Data, Methodology and Challenge

IEEE Transactions on Affective Computing 2023年第3期14卷 1857-1875页

作者： Xie, Hong-Xia Lo, Ling Shuai, Hong-Han Cheng, Wen-Huang National Yang Ming Chiao Tung Univresity Institute of Electronics Hsinchu300093 Taiwan National Yang Ming Chiao Tung Univresity Department of Electrical and Computer Engineering Hsinchu300093 Taiwan National Chung Hsing University Artificial Intelligence and Data Science Program Taichung40227 Taiwan

Facial micro-expressions indicate brief and subtle facial movements that appear during emotional communication. In comparison to macro-expressions, micro-expressions are more challenging to be analyzed due to the short span of time and the fine-grained changes. In recent years, micro-expression recognition (MER) has drawn much attention because it can benefit a wide range of applications, e.g., police interrogation, clinical diagnosis, depression analysis, and business negotiation. In this survey, we offer a fresh overview to discuss new research directions and challenges these days for MER tasks. For example, we review MER approaches from three novel aspects: macro-to-micro adaptation, recognition based on key apex frames, and recognition based on facial action units. Moreover, to mitigate the problem of limited and biased ME data, synthetic data generation is surveyed for the diversity enrichment of micro-expression data. Since micro-expression spotting can boost micro-expression analysis, the state-of-the-art spotting works are also introduced in this paper. At last, we discuss the challenges in MER research and provide potential solutions as well as possible directions for further investigation. © 2010-2012 IEEE.

关键词： Surveys

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Study on Electromagnetic Resonance Antennas in the Vicinity of Human Body

Study on Electromagnetic Resonance Antennas in the Vicinity ...

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2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2022

作者： Hiramoto, Toshiya Hirabayashi, Koichi Noguchi, Keisuke Kanazawa Institute of Technology Graduate Program in Electrical Engineering and Electronics Ishikawa Nonoichi Japan Fukuvi Chemical Industry Co Ltd Equipment Engineering Section Fukui Fukui City Japan Kanazawa Institute of Technology Depertment of Electrical and Electronic Engineering Ishikawa Nonoichi Japan

ISBN: (数字)9781665432382

ISBN: (纸本)9781665432382

In this study, we investigate a directional electromagnetic resonance antenna (EMRA) for application to wearable antennas. We designed an EMRA in free space and confirmed its unidirectional pattern through simulations and prototype experiments. We also analyze the characteristics of EMRA when it is in close to the surface of a human phantom. As a result, EMRA in the vicinity of human body resulted in a gain reduction of up to 2 dB compared to the free-space condition. However, when the distance from the surface of the human phantom was more than 10 mm, the gain was confirmed to be close to that in free space. © 2022 IEEE.

关键词： Phantoms

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Effect of Laying Parameters and Non-sinusoidal Loading Condition of High-Voltage Underground Cables on electrical Performance by Finite Element Method

Effect of Laying Parameters and Non-sinusoidal Loading Condi...

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Power Tech Conference

作者： Yunus Berat Demirol Özcan Kalenderli Graduate School of Electrical Engineering Program Istanbul Technical University Istanbul Turkey Faculty of Electrical and Electronics Engineering Istanbul Technical University Istanbul Turkey

Depending on the bonding type, screen currents and screen voltages of high-voltage underground cables have critical importance in the distribution system. These parameters directly affecting energy efficiency and operational safety need to be calculated and evaluated during the system design. Especially in electric vehicle charging stations, energy storage facilities, solar power plants, oil and gas production facilities, and data centers, these parameters become even more critical because of operating with non-sinusoidal loading conditions. It is seen that studies evaluating the electrical performances of high-voltage cables depending on their harmonic loading conditions and ge-ometrical placement characteristics are limited in the literature. This study investigates the screen voltage, screen current, and loss performance of a high-voltage underground cable system consisting of two parallel circuits in different bonding types and layouts depending on the distance between the cables and the non-sinusoidal loading conditions. For this purpose, the cable system was modeled and analyzed in FEM software. In addition, the calculations performed with the finite element method were also verified by the IEC 60287-1-3 method. The study evaluated the performance of the high-voltage underground cable system for a distribution network and emphasized that these analyses should be carried out during the system design.

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Quantum Wrapper Networking: Investigating the Noise Impact of Classical Headers on the Quantum Payload

Quantum Wrapper Networking: Investigating the Noise Impact o...

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2024 Frontiers in Optics, FiO 2024

作者： Gül, Gamze On, Mehmet Berkay Tan, Shannon G. Proietti, Roberto Kanter, Gregory S. Yoo, S.J. Ben Kumar, Prem Graduate Program in Applied Physics Northwestern University 2145 Sheridan Road EvanstonIL60208 United States Department of Electrical and Computer Engineering University of California Davis DavisCA95616 United States Center for Photonic Communication and Computing Dept. of Electrical and Computer Eng. Northwestern University EvanstonIL60208 United States Department of Electronics and Telecommunications Engineering Politecnico di Torino Italy

We study the impact in time and frequency domains of classical headers on quantum payloads in quantum wrapper networking. We identify and characterize in-fiber scattering processes that produce noise photons degrading...

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Smart Electronic Assistive Device for Visually Impaired Individual through Image Processing 13

Smart Electronic Assistive Device for Visually Impaired Indi...

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2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management, HNICEM 2021

作者： Flores, Ira Lacdang, Gary Chris Undangan, Chessa Adtoon, Jetron Linsangan, Noel B. University of Mindanao Electronics Engineering Program College of Engineering Education Davao Philippines Mapua University School of Electrical Electronics and Computer Engineering Manila Philippines

ISBN: (纸本)9781665401678

According to World Health Organization, it is assessed that around 1.3 billion individuals live with some distance or near vision impairment. People with visual impairment encounter different issues in their everyday life as advanced assistive devices are frequently not meeting the consumer prerequisites in terms of price and level of assistance. The paper's primary goal is to build a smart electronic assistive device specifically for visually impaired individuals. The study consists of two devices, which are the glasses and the smart cane. The glasses are responsible for text detection and recognition, which falls under image processing. At the same time, the smart cane is the one responsible for obstacle detection using combination sensors known as VL53L0X and Ultrasonic. This study found that the smart cane and smart glass functions well as intended, in alerting users through a voice alert about the obstacles around and navigation and reading the text captured by the camera. The smart cane's obstacle detection accuracy is 100%, while the smart glasses' overall accuracy is 98.13% for document text and 91.33% for natural scene text. © 2021 IEEE.

关键词： Obstacle detectors

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SCENE TEXT RECOGNITION MODELS EXPLAINABILITY USING LOCAL FEATURES

arXiv

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arXiv 2023年

作者： Ty, Mark Vincent Atienza, Rowel Electrical and Electronics Engineering Institute University of the Philippines Philippines AI Graduate Program University of the Philippines Philippines

Explainable AI (XAI) is the study on how humans can be able to understand the cause of a model's prediction. In this work, the problem of interest is Scene Text Recognition (STR) Ex-plainability, using XAI to understand the cause of an STR model's prediction. Recent XAI literatures on STR only provide a simple analysis and do not fully explore other XAI methods. In this study, we specifically work on data explainability frameworks, called attribution-based methods, that explain the important parts of an input data in deep learning models. However, integrating them into STR produces inconsistent and ineffective explanations, because they only explain the model in the global context. To solve this problem, we propose a new method, STRExp, to take into consideration the local explanations, i.e. the individual character prediction explanations. This is then benchmarked across different attribution-based methods on different STR datasets and evaluated across different STR models. © 2023, CC BY-SA.

关键词： Forecasting

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Correlation and Regression Evaluation of Small PM Sensors in Metro Manila

Correlation and Regression Evaluation of Small PM Sensors in...

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Omni-layer Intelligent Systems (COINS), International Conference on

作者： Jomari Ganhinhin John Richard Hizon Marc Rosales Percival Magpantay Center for Air Research in Urban Environments (CARE) Program Electrical and Electronics Engineering Institute University of the Philippines Diliman Quezon City Philippines

ISBN: (数字)9798350349597

ISBN: (纸本)9798350349603

The popularity of compact, off-the-shelf air quality sensors have gained traction in recent years, providing wider access while also being a cheaper alternative to reference monitors which are often inaccessible in some regions. This study investigates the performance of two SPS30 PM2.5 sensors over a 6-month period as they were collocated with Teledyne T640 FEM Monitors located in Metro Manila, Philippines. These sensors are part of an existing IoT network that manages over sensor enclosures that aim to measure air quality. Results show that the sensors can attain strong correlations with its reference monitors, but can also perform poorly due to factors such as seasonal changes or sensor placements. Using simple linear regression to correct these errors managed to achieve ${\mathrm{R}}^{2}$ values up to 0.91 and errors as low as 3 $\mu \mathrm{g}/\mathrm{m}^{3}$ . The promising performance and simple correction of these sensors highlight the potential of equipping the IoT network with cloud-based auto-calibration to provide accurate measurements.

关键词： Cloud computing Correlation Linear regression Humidity Air quality Sensor systems Sensors

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Corrugated Quad-Ridged Dual-Polarized Wideband Horn Antenna For mm-Wave Applications

Corrugated Quad-Ridged Dual-Polarized Wideband Horn Antenna ...

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National Conference on Radio Science (NSRC)

作者： Mohamed N. Salem Mohamed I. Ahmed Amr H. Hussein Department of Electronics and communication Engineering Institute of Aviation Engineering and Technology (IAET) Giza Egypt Microstrip department Electronics Research Institute El-Nuzha Cairo Electronics and Communication Program Faculty of Engineering Egypt University of informatics New Administrative Capital Knowledge City Egypt Electronics and Electrical Communications Engineering Dept. Faculty of Engineering Tanta University Tanta Egypt Electronics and Electrical Communications Engineering Department Faculty of Engineering Horus University Egypt New Damietta Egypt

This paper showcases the development of a wideband Dual-polarized horn antenna for mm-wave applications. It can be used for reflector feeding, imaging, satellite communication and power transmission due to its enhanced parameters. The working bandwidth is 10 GHz from 4 GHz to 14 GHz (VSWR $\lt1.9)$. This design is formed of three parts: 1) the waveguide is designed to support the entire bandwidth and to improve the impedance matching 2) four ridges to enable Dual-polarized antenna 3) the flared part is corrugated to enhance the side lobe level (SLL). The insertion between the two ports is less than -25 dB for most frequencies. The SLL is less than -25 dB for the low frequencies and -30 dB for the high frequencies. The co- and cross-pol radiation pattern simulation shows that the cross-pol magnitude is 20-30 dB less than the co-pol magnitude. These results have been proved using the CST MWS and Ansys HFSS software.

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A New Three-Level Split-Inductor T-Type Inverter

A New Three-Level Split-Inductor T-Type Inverter

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IEEE Energy Conversion Congress and Exposition, ECCE

作者： Lucas Vinicius de Araújo Gomes Montiê Alves Vitorino Maurício Beltrão de Rossiter Corrêa Graduate Program in Electrical Engineering (PPgEE–COPELE) Industrial Electronics and Machine Drive Laboratory (LEIAM) Federal University of Campina Grande (UFCG)

ISBN: (数字)9798350376067

ISBN: (纸本)9798350376074

Some of the key requirements and trends in power electronics in recent years include improving efficiency as well as providing a energy quality while using a converter with high power density and long lifetime. Following these tendencies, multilevel T-type converters have the potential to improve the efficiency and performance of power conversion systems, especially in the renewable energy industry. A new multilevel converter with split-inductors is proposed, that offers dead-time elimination, shoot-through protection, ringing suppression and improved efficiency. Since the split-inductors are always connected in series with the switches, the protection against shoot-through is achieved by regulating the circulating current, eliminating the need for dead-time. Simulation and experimental results were shown to prove the functionality of the proposed converter.

关键词： Renewable energy sources Power system measurements Multilevel converters Market research Inverters Topology Power conversion Protection Signal analysis Integrated circuit reliability

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First Demonstration of HZO-LNOI Integrated Ferroelectric Electro-Optic Modulator and Memory to Enable Reconfigurable Photonic Systems

First Demonstration of HZO-LNOI Integrated Ferroelectric Ele...

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2023 International Electron Devices Meeting, IEDM 2023

作者： Xu, Zefeng Chen, Chun-Kuei Lin, Hong-Lin Gao, Yuan Ke, Wei Xu, Baochang Dmitriev, Pavel Arbiz, Carlan Zamburg, Evgeny Touzard, Steven Cai, Xinlun Lee, James Venkatesan, Suresh Danner, Aaron Thean, Aaron Voon-Yew Department of Electrical and Computer Engineering Singapore Nus Graduate School Integrative Sciences and Engineering Program Singapore 117583 Singapore School of Electronics and Information Technology 117583 Singapore Centre for Quantum Technologies Nus Singapore Poet Technologies Canada Sun Yat-Sen University 510275 China

ISBN: (纸本)9798350327670

We have successfully demonstrated, for the first time, an innovative back-end-of-line (BEOL) compatible electro-optic modulator and memory (EOMM) based on Lithium Niobate on Insulator (LNOI) micro-ring resonator (MRR) integrated with Ferroelectric Hafnium Zirconate Hf0.5Zr0.5O (HZO) non-volatile analog memory. High non-volatile memory and modulation performances are both achieved in a single compact device, exhibiting high extinction ratio of 13.3 dB, excellent efficiency of 66pm/V, stable nine-state switching, record-high endurance exceeding 109 cycles. This is accomplished by utilizing Pockels effect in LNOI, induced by electric-field effect from remnant HZO ferroelectric polarization. We studied the system implementation of reconfigurable chiplet-interposer photonic interconnect, enabled by the EOMM and EOMM with hybrid thermal-optical modulation. Our model shows a potential 70% energy efficiency improvement over conventional electrical interposer interconnect. We have also tested the integration of the EOMM with POET technologies' 400G Tx/Rx optical interposer chip and studied a limited scale demonstration of the EOMM device. © 2023 IEEE.

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