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Pulsed power network is one of the alternatives of smart grid systems. This scheme is applicable especially to localized power grid where only distributed generations supply power to consumers. In this demonstration, a miniature model of the localized pulsed power network is constructed and performed with two distributed generations, four consumers, and eight power routers. This model is operated...
Teleconference systems are widely used in business and education. They are required to enhance only the target speech while suppressing diffuse or interference noise. The minimum variance beamformer is a strong method to enhance the target speech; However, it is less robust at low frequencies. We propose a robust beamformer based on the minimum variance method in the spherical harmonic domain. Less...
It is an important task to prepare for unprecedented natural disasters. When natural disasters occur, indoor and outdoor situations greatly change. Therefore, it is difficult to provide evacuation guidance during sudden and unpredictable disasters. We propose an agent-based evacuation guidance support system, which autonomously determines the evacuation guidance plan based on the situation assessed...
Smart Lighting Systems are designed to conserve energy without compromising the user's visual comfort. The system incorporates Smart Android Application (App) and communication technologies to adjust light intensities as per the user comfort and behavior, employing the smart sensors. This paper presents implementation of a Smart App for smart lighting system based on the location of the individual...
This study aims to apply the synergy of human hand fingers in a robotic hand. Linear regression was used to study the movements. The work contributes to defining robotic models similar to human synergy. As a result an algorithm was obtained that applies the necessary movements in the robotic hand so that it reproduces movements similar to those of the human hands.
This paper describes a method of avoiding the dangers of texting while walking. The proposed method is a device which is attached to the buckle of the belt of the person. Using a supersonic wave, we sensed the dangers of the texting while walking and realized a method which notified a person of it beforehand. The device is low cost to build and it can be used anywhere.
To support mobile devices with different screen resolutions, social video sharing sites need to provide distinctive versions of the videos for mobile users to choose, resulting in the consumption of massive storage space. Scalable Extensions of the High Efficiency Video Coding (SHVC) can reduce about 15–30% storage of distinctive video spatial resolution. Meanwhile, traditional video caching technology...
This paper proposes a new 3D video quality assessment based on 3D visual perception for texture and depth image for measuring the quality of stereoscopic 3D videos by detecting 3D distortions. The effectiveness of the proposed metrics is verified by conducting subjective evaluations on publicly available stereoscopic image databases. Experimental results show that significant consistency can be reached...
Vection is an illusion sensation of self-motion provoked by watching visual oscillation. Traditionally, vection perception has been qualified using frequency responses. Indeed, the concept of frequency response is a common way to quantify the responses of visual oculomotor functions such as optokinetic nystagmus (OKN) and vestibular ocular reflex (VOR). This study explores whether frequency is the...
Plenoptic images captured from plenoptic cameras provide angular information as well as conventional spatial information of the scene. Using the angular information, plenoptic imaging can generate multiview images. In this paper, we developed approaches for object segmentation on 4D hyper volume represented with the multiview images. Our approaches are based on graph cut algorithms and applied connected...
E-commerce (EC) sites have become quite popular for online shopping. However, a user of an EC site must possess certain skills to search for his/her desired product from the numerous web pages. A mixed-reality web-shopping system with panoramic views mitigates this problem. The users of this system can shop in the same manner as they do in a real shop, by viewing the panoramic photographs taken inside...
A photo-based augmented reality (Photo AR) system is an AR system that uses photographic images, instead of computer graphics of 3D models. The advantage of this system is that it can display realistic augmented views to users; however, it requires large disk-space volumes because it uses many images. The images can be compressed by storing in video formats; however, the rendering times of the conventional...
Electrocardiogram (ECG) diagnosis is a widely-used clinical approach because it has been proven as an efficient way to diagnose cardiac disease. However, to get an accurate ECG diagnosis is a challenging task because it is a nonlinear problem. Therefore, many Neural Network (NN)-based ECG analysis approaches were proposed to analyzes ECG signal in time domain in recent years which can improve the...
Recently, many tourists visit Japan from various countries. Hence, automatic speech translation device is desired for services in various business scenes at a shopping, a station, a town, and a hotel. For realizing speech translation with higher accuracy under these situations, speech from user must be captured and recognized accurately even under various kinds of noise environments. In this study,...
This paper develops a self-propelled Wi-Fi repeater for connecting between isolated LANs in Disaster. The authors implemented the self-propelled repeater, and evaluated the performance of it by experiment. From the results of experiment, authors confirmed the effectiveness of their repeater.
In this paper, we propose a new positioning method by using wireless local area network systems based on a principle of the Real Time Kinematic-Global Positioning Systems (RTK-GPS). The proposed method collects observations of the carrier phase at access points for double phase difference of the RTK-GPS by following the point coordination function of the IEEE 802.11 standard. We show some numerical...
Physical unclonable functions (PUFs) have become commercially available for anti-counterfeiting and authentication applications. PUF circuits are built on ASICs but can be implemented on FPGAs. For many electronic products, FPGAs are used in order to shorten development periods and reduce costs. Therefore, implementing PUFs on FPGAs can improve security in nearly all electronic products. However,...
Nonintrusive load monitoring (NILM) technique tries to measure the power consumption of all appliances at the power meter, the single point where the power cable enters your home. In literature, many algorithms have been proposed to detect appliance usage in smart grid to detect how much and what appliances are in use. In this paper, we emphasis on the issue where the appliance is in use. In practice...
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