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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...
We propose a mind map manipulation system, named MMVR. This system allows multiple users to edit a mind map by using hand gestures and to share it in virtual reality space. To implement the system, we leveraged a hand gesture tracker for quick, easy, and correct handling of mind map elements and a head-mounted display (HMD) for providing a wider workspace than a standard PC's screen. We conducted...
In order to detect the pedestrian by using a low resolution LiDAR with a low-end processor, we proposed a method to calculate independent results for each scan line before integrating them. For verifying the effectiveness of the proposed method, we tried to classify point cloud data taken at a 3 m, 4 m, 5 m, 6 m and 7 m position apart from pedestrians, bicycles, motorbikes and vehicle. We confirmed...
We present a system prototype aimed at lowering the burden of grocery shopping by recommending products according to those currently in a shopping basket, and supporting users in finding their way from their current position to the location of a determined item within the store. On the backend side, retailers can reflect changes in the location of inventory and shelf distribution in the store. These...
Even though the various features of satirical language have been studied in computational linguistics, most of the research works have relied on the performance of the single machine learning algorithm. However, the implicit traits embedded in the language demand more certain, precise and accurate combination powers of an individual algorithm. In this study, we analyzed the performance of emotion-based...
In a POMDP environment, an agent may observe the same information at more than one state. HQ-learning and episode-based profit sharing (EPS) are well-known methods for solving this problem. HQ-learning divides a POMDP environment into subtasks. EPS distributes the same reward to state-action pairs in the episode when an agent achieves a goal. However, these methods have disadvantages related to the...
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 paper proposed robust color constancy method for changing illuminant by using local chromaticity distribution and analysis of illuminant influence for each hue angle. First, changing in chromaticity distribution direction for each color with respect to various illuminant is analyzed using principal component analysis. Next, change in standard deviation of chromaticity distribution with respect...
Future of food innovation lies in the art and science of designing an interactive connected intelligent device that can detect how we feel and display the content suitable for individual consumers. We designed a smart dining table and chairs that can detect, sense, and analyze consumer's satisfaction, and interact with consumers. A team of furniture designer, software engineers, mechanical engineer,...
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...
The aim of this research is developing a system that estimates the direction of users by attaching multiple antennas to users. We proposed the method of direction estimation using RSSI of multiple XBees antennas attached to the helmet as a wearable device. In this study, we used a bucket filled with water to simulate the human head and confirmed that direction estimation is sufficiently possible....
Demand-side management (DSM) is one of the main applications for a community energy management in the smart grid. It can control and manage energy on the demand side, e.g., electricity consumption. Various DSM scheduling algorithms have been developed and have reported good evaluation results using simulation. However, in order to develop a practical DSM application, the effects of human activity...
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...
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