We developed a small coil and oscillator system for the hyperthermia of magnetic nanoparticles. The inner diameter and the length of the coil are 50 Φ and 60 mm, and we used them for the mice experiments. The frequency i ... more
VR has been applied to medical treatment and welfare, and there are more and more opportunities for the elderly and recuperators to use VR. However, it is difficult for the elderly and recuperators to wear head-mounted d ... more
To understand the underlying neuronal representation for object recognition, we designed this study to investigate the changes in N1, the first negative event-related potential component, accompanied by object discrimina ... more
Patient transfer during nursing care imposes a heavy burden on long-term caregivers, frequently causing back pain. It is therefore necessary to improve nursing skills in order to reduce the burden on caregivers so as to ... more
In this study, we created a VR system using an HMD that allows nursing college students to simulate delirium, and clarified the physiological and psychological changes that occur when simulating delirium. The subjects we ... more
Convolutional Neural Network for Octave Illusion Classification
論文No: ページ数: 7 日付: 2022/05/01
著者: Nina Pilyugina (Graduate School of Advanced Science and Technology, Tokyo Denki University), Akihiko Tsukahara (School of Science and Engineering, Tokyo Denki University), Keita Tanaka (Graduate School of Advanced Science and Technology, Tokyo Denki University/School of Science and Engineering, Tokyo Denki University)
キーワード : auditory illusion,octave illusion,convolutional neural network,deep learning,magnetoencephalography
The octave illusion occurs when two tones with one-octave differences are alternately played to both ears repeatedly. This study aims to classify participants into illusion and non-illusion groups by applying a convoluti ... more
The purpose of this study was to develop a computerized classification method for low-grade gliomas (LGGs) with/without 1p/19q codeletion on brain MRI using multi-scale 3D-convolutional neural networks (Multi-scale 3D-CN ... more
Tooth Localization using YOLOv3 for Dental Diagnosis on Panoramic Radiographs
論文No: ページ数: 6 日付: 2022/05/01
著者: Toan Huy Bui (Course of Science and Technology, Graduate School of Science and Technology, Tokai University), Kazuhiko Hamamoto (School of Information and Telecommunication Engineering, Tokai University), May Phu Paing (School of Engineering, King Mongkut's Institute of Technology Ladkrabang)
キーワード : panoramic radiograph,medical image processing,deep learning,object detection,computer-aided diagnosis
Oral health is one of most major concerns that affect the life quality of billions of people around the world. Diagnosis treatment usually takes time due to the lack of doctors compared to a huge number of patients. Many ... more
The purpose of this study was to assess the influence of ageing on reaching motion using a simple and quantitative method. An Electronic Evaluation System of Upper Extremity Function incorporating a motion sensor was use ... more
The rich dynamics of spatio-temporal activities in the neural system could be considered a computational resource. In this work, we attempted to quantify the capacity of information processing in the rat auditory cortex ... more
The rich dynamics of spatio-temporal activity patterns in the brain might be exploited in the neuronal information processing. In dissociated cultures of neurons, we attempted to evaluate information processing capacity ... more
Computerized Classification Method for Histological Classification of Masses on Breast Ultrasonographic Images Using Convolutional Neural Networks with ROI Pooling
It can be difficult for clinicians to correctly determine histological classifications of masses on breast ultrasonographic images. The purpose of this study was to develop a computerized classification method for histol ... more
In recent years, non-invasive monitoring system for blood viscosity has been widely discussed. We have proposed a method to estimate the blood viscosity by measuring the degree of red blood cell aggregation with image co ... more
In order to provide products and services that are optimized to the values of each consumer, biometric information such as heart rate variability and electroencephalogram is useful for estimating values and preferences f ... more
In recent years, Quality of Experience (QoE) from the user’s perspective, has been attracting attention. Attempts have been made to quantify QoE by clarifying changes in various biological information. In this study, we ... more
It has been reported that VR sickness can be suppressed by the placement of a fixation point in a field of view. However, the relationship between trajectory of the fixation point and VR sickness reduction effect is not ... more
For realizing desired control performances, data-driven tunings such as virtual reference feedback tuning (VRFT) and fictious reference iterative tuning (FRIT) were proposed. However, these methods cannot realize desired ... more
In this paper, we propose a method for indexing, analyzing, and evaluating of the stroking movement based on vibration features as a measurement method that mimics the response characteristics of finger associated with a ... more
Electromagnetic phantom is widely used to develop technologies based on the interaction between human and electromagnetic waves. In this paper, we evaluated the emulation performance of a multilayered HF-band phantom fro ... more
In this paper, an adaptive algorithm of the dither gain based on the practical gradient method and its stability are considered. This adaptive algorithm is applied to the filtered-x active noise control system that is a ... more
Flattop beams are in high demand for a variety of applications, including uniform surface treatment, interference laser processing, repairing and skin therapy. In this experiment, we optimized the direction of phase grat ... more
Low molecular weight silicones were ejected from silicone rubber target irradiated by a 193 nm ArF excimer laser through the photo-desorption. The ejected silicones were successfully deposited on a fused silica glass sub ... more
We have demonstrated that 7-fs, ~810-nm laser pulses can produce a much finer periodic nanostructure on a diamond-like carbon (DLC) film than that formed with 100-fs, ~800-nm laser pulses through ablation in air. The min ... more
Laser processing has great potential for precision microfabrication of various materials including hard-to-machine materials, and has a high affinity for digital transformation. The productivity and quality of laser micr ... more
Co patterns were fabricated by using femtosecond laser pulse-induced thermochemical reduction of glyoxylic acid Co complex. Glyoxylic acid Co complex was synthesized by mixing CoSO4・7H2O and glyoxylic acid, following tha ... more
Adaptive optics for compensating wavefront aberrations is important because the aberrations cause focal spot distortion leading to loss of resolution in laser processing. In this paper, femtosecond laser processing with ... more
This paper analyzes security strength of Iseki & Hayashi's secure computation which is valid for computation of polynomial as for real numbers, and proposes a new method to improve its security strength. First we derive ... more
Development of an Intention Estimation Model Based on Gaze and Face Information for Electric Wheelchair Operation Support
論文No: ページ数: 8 日付: 2022/04/01
著者: 比嘉 聖(琉球大学),山田 孝治(琉球大学),神里 志穂子(沖縄工業高等専門学校)
キーワード : 機械学習,生活支援ロボット,意図推定,視線・顔動作,肢体不自由者 machine learning,life support robot,estimation of intention,gaze and face behavior,physically disabled persons
In recent years, various user interfaces have been developed to meet the diverse needs of physically disabled persons. In this paper, we developed a method to identify gazing and facial movements based on gaze time and e ... more