A5011350023- Muscle activation and electromyography studies
- Hand Gesture Recognition Systems
- Ergonomics and Musculoskeletal Disorders
- Balance, Gait, and Falls Prevention
- Robot Manipulation and Learning
- Prosthetics and Rehabilitation Robotics
- Lower Extremity Biomechanics and Pathologies
- Human Pose and Action Recognition
- Tactile and Sensory Interactions
- Virtual Reality Applications and Impacts
- Stroke Rehabilitation and Recovery
- Motor Control and Adaptation
- Digital Transformation in Industry
- Human Motion and Animation
- Orthopedic Surgery and Rehabilitation
- 3D Shape Modeling and Analysis
- Gait Recognition and Analysis
- Advanced Sensor and Energy Harvesting Materials
- Augmented Reality Applications
- Interactive and Immersive Displays
- Non-Invasive Vital Sign Monitoring
- Robotics and Automated Systems
- Effects of Vibration on Health
- Ergonomics and Human Factors
- Medical Imaging and Analysis
National Institute of Advanced Industrial Science and Technology
2016-2025
Hokkaido University
2024
Keio University
2014-2020
Hyogo Medical University
2018
Tokyo University of Science
2014
Chuo University
2013
The University of Tokyo
1998-2011
Chiba University
2007-2008
Japan Science and Technology Agency
2005-2007
Centre de Recherche en Économie et Statistique
2007
Advances are being made in applying digital twin (DT) and human-robot collaboration (HRC) to industrial fields for safe, effective, flexible manufacturing. Using a DT human modeling simulation enables ergonomic assessment during working. In this study, DT-driven HRC system was developed that measures the motions of worker simulates working progress physical load based on (DH) technology. The proposed contains virtual robot, DH, production management modules integrated seamlessly via wireless...
This research addresses architecture-scale problem-solving involving the design of living or working spaces, such as architecture and floor plans. Such systems require two different viewpoints: a small-scale internal view, i.e., first-person view space to see local details an occupant space, large-scale external top-down entire make global decisions when designing space. Architects designers need switch between these viewpoints various decisions, but this can be inefficient time-consuming....
To maximize user experience in VR environments, optimizing the comfortability of head-mounted displays (HMDs) is essential. date, few studies have investigated fatigue induced by wearing commercially available HMDs. Here, we focus on effects HMD weight and balance physical load experienced user. We conducted an experiment which participants completed a shooting game while differently weighted balanced Afterwards, questionnaires to assess levels discomfort fatigue. The results clarify that...
In countries experiencing a growing shortage of human resources, collaboration with robots is indispensable for leveraging diverse workforce and maintaining productivity. This study proposes manufacturing system that simultaneously enhances overall productivity reduces workload through mutual assistance between humans robots. By considering the characteristics both robots, task allocation was performed to balance trade-off workload. Furthermore, this introduces method improving robot...
Flexible and stretchable strain sensors are expected to significantly contribute new technologies be applied in various applications, including human interfaces, smart clothes, robotic skin. Hence, we have proposed a flexible film-shaped sensor that is composed of three elastomer films two carbon-nanotube electrodes. It thin, lightweight, has low elasticity. Strain measurements taken by the based on changes capacitance, which proportional square area sensor's sensing part. Consequently,...
In human behavior recognition using machine learning, model performance degrades when the training data and operational follow different distributions which is a phenomenon known as domain shift. This study proposes method for adaptation in hidden semi-Markov (HSMM) by modifying only emission probability distributions. Assuming that state transition probabilities remain unchanged, updates based on posterior distribution of target domain. approach enables with minimal computational cost...
Conventional strain sensors measure strains exerted on solid metals and have been widely applied. Stretch measurements of flexible objects require with wide dynamic range (stretch exceeding 100%) that can also areal changes. Flexible are expected to realize a technologies, such as human interfaces, smart clothes, skin-motion monitoring, robotic skin. Recently, carbon nanotubes (CNTs) assembled into stretchable conductors, potential base materials for various sensors. Herein, we construct...
To examine the possible existence of collateral circulation during coronary artery spasm, we attempted to visualize transient appearance vessels that could serve salvage otherwise jeopardized ischemic areas. In three patients with vasospastic angina, total spastic obstruction a major was associated augmentation, which supplied by nonspastic anginal period ST-segment depression. These disappeared when angina and ST changes resolved after nitroglycerin administration. findings suggest blood...
Human motion capture (MoCap) plays a key role in healthcare and human–robot collaboration. Some researchers have combined orientation measurements from inertial measurement units (IMUs) positional inference cameras to reconstruct the 3D human motion. Their works utilize multiple or depth sensors localize three dimensions. Such are not always available our daily life, but just single camera attached smart IP devices has recently been popular. Therefore, we present pose estimation approach...
In this paper, as a practical approach to building human-centered cyber-physical system (CPS), we propose software platform that integrates hardware and materials realize human digital twin (HDT) including model construction, data acquisition, analysis, intervention in terms of the physical load capabilities humans. Furthermore, case study industrial applications, introduce an example CPS which humans robots work together better workability production line productivity within system.
Abstract In this paper, we propose a new method of reconstructing the hand models for individuals, which include link structure models, homologous skin surface and tetrahedral mesh in reference posture. As model, local coordinate system related to each consists joint rotation center axes rotation, can be estimated based on trajectories optimal markers relative region subject obtained from motion capture system. The model is defined as three-dimensional triangular mesh, by deforming template...
The main objectives of this project, launched in July 2021, is to mitigate and solve issues regarding health care services such as rehabilitation specific guidance while alleviating spatio-temporal, economic, cognitive constraints by establishing remote technology foundation. There are four themes project. In theme #1, we have been developing the MR <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> devices consisting Wear Mannequin for...
This paper presents the structure and performance of newly developed fingerprint imaging system, outline image processing for quantification incipient slip. Incipient slip, that is considered to have direct relation with slip perception, visualized as distortion a pattern. A force sensor contact measurements are also developed. Thus this system enables highly accurate fingertip measurements.
Summary Several studies investigated the mechanical loads developing in hands during use of various products order to enhance user's performance, increase satisfaction and lower risk acute cumulative trauma disorders. Values pressure discomfort (PDT) pressure‐pain threshold (PPT) were, hence, provided. PDT PPT may differ significantly for each subject area hand because psychological physiological factors. A finite element study effect fingertip anthropometry anatomy geometry on developed...
This paper presents an 6-axis optical force sensor which can be used in fMRI. Recently, fMRIs are widely for studying human brain function. Simultaneous measurement of activity and peripheral information, such as grip force, enables more precise investigations studies motor However, conventional sensors cannot fMRI environment, since metal elements generate noise severely contaminate the signals An 2-axis has been developed using photo fibers by Tada et. al.(2002), that resolved these...
Summary Objective: Development of a clinical sensor network system that automatically collects vital sign and its supplemental data, evaluation the effect automatic value assignment to patients based on locations sensors. Methods: The estimates data-source, target patient, from position obtained newly developed proximity sensing system. positions devices using Bluetooth inquiry process. Using access points positioning in this project, 4W (who, where, what, when) data any Blue-tooth ready...
Architecture-scale design requires two different viewpoints: a small-scale internal view, i.e., first-person view of the space to see local details as an occupant space, and large-scale external top-down entire make global decisions when designing space. Architects or designers need switch between these viewpoints, but this can be inefficient time-consuming. We present collaborative system, Dollhouse, address problem. By using our users discuss from viewpoints simultaneously. This system...
Abstract Owing to our rapidly aging society, accessibility evaluation enhance the ease and safety of access indoor outdoor environments for elderly disabled is increasing in importance. Accessibility must be assessed not only from general standard aspect but also terms physical cognitive friendliness users different ages, genders, abilities. Meanwhile, human behavior simulation has been progressing areas crowd analysis emergency evacuation planning. However, simulation, environment models...
The measurement of human motion is an important aspect ergonomic mobility design, in which the product evaluated based on factors obtained by digital (DH) technologies. optical motion-capture (MoCap) system has been widely used for measuring laboratories. However, it generally difficult to measure using products real-world scenarios, e.g., riding a bicycle outdoor slope, owing unstable lighting conditions and camera arrangements. On other hand, inertial-measurement-unit (IMU)-based MoCap...
The satisfaction rating of currently available mechanical staplers for Japanese surgeons with small hands is low. To identify the issue, we examined relationship hand dimensions and grip force operation a circular stapler.Hand were measured in 113 (52 men 61 women). We then evaluated between width required to push lever stapler, at three points on lever, using digital gauge.The optimal dominant was 62.5 ± 8.5 mm 55.5 5.9 women (p < 0.001). maximum 44.2 6.1 kg 29.7 4.5 0.001) 7.0, 45.0, 73.0...