Naoya Isoyama

Naoya Isoyama
Nara Institute of Science and Technology | NAIST · Graduate School of Information Science

Doctor of Engineering

About

52
Publications
5,497
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85
Citations
Introduction
Naoya Isoyama graduated (Electrical and Electronics Engineering of Kobe University) in 2010. He completed the Master's program at its Graduate School of Engineering in 2012. He completed the doctorate program of its Graduate School of Engineering in 2015. He is an Assistant Professor at Nara Institute of Science and Technology since April 2019 after pursuing careers at Aoyama Gakuin University and Kobe University. He is engaged in studies on wearable computing, entertainment computing.

Publications

Publications (52)
Article
Full-text available
It is known that subjective time and work efficiency are affected by visual stimuli. However, existing studies only consider the effects of visual information on the user during viewing and ignore the after effects. Using smart glasses lets users see visual information while moving until just before arriving at the office or school. We hypothesize...
Article
Interpersonal communication is so important in everyday life that it is desirable everyone who participates in the conversation is satisfied. However, every participant of the conversation cannot be satisfied in such cases as those wherein only one person cannot keep up with the conversation and feels alienated, or wherein someone cannot communicat...
Article
Full-text available
Common existing head-mounted displays (HMDs) for virtual reality (VR) provide users with a high presence and embodiment. However, the field of view (FoV) of a typical HMD for VR is about 90 to 110 [deg] in the diagonal direction and about 70 to 90 [deg] in the vertical direction, which is narrower than that of humans. Specifically, the downward FoV...
Article
Optical see-through head-mounted displays are actively developed in recent years. An appropriate method for mutual occlusion is essential to provide a decent user experience in many application scenarios of augmented reality. However, existing mutual occlusion methods fail to work well with a large field of view (FOV). In this Letter, we propose a...
Article
Full-text available
Vision-induced gustatory manipulation interfaces can help people with dietary restrictions feel as if they are eating what they want by modulating the appearance of the alternative foods they are eating in reality. However, it is still unclear whether vision-induced gustatory change persists beyond a single bite, how the sensation changes over time...
Article
Full-text available
Wearable devices that display visual augmented reality (AR) are now on the market, and we are becoming able to see AR displays on a daily basis. By being able to use AR displays in everyday environments, we can benefit from the ability to display AR objects in places where it has been difficult to place signs, to change the content of the display a...
Article
The consistency between the virtual environment and the real environment perceived by the body is important, and sensory stimulation technologies that can enhance the sense of self-ownership and self-agency for the virtual body are required. The objective of this study is to clarify the effect of tendon vibration stimulation on the perception on th...
Article
Full-text available
In virtual reality (VR) tourism, when watching a video of a tourist location, the feeling of presence improves the experience. Furthermore, it is desirable to be able to give a feeling of having been there before to the users visiting the site afterward. In this study, we aimed to reveal the factors that provide these feelings. We hypothesized that...
Conference Paper
Full-text available
一般的な既存のVR (Virtual Reality)用HMD (Head Mounted Display) は高い没入感や臨場感をユーザに与えるが,垂直視野角は人間の元来のものと比べると狭い.特に水平から下方向の視野角は,HMDを装着しての卓上での作業や歩行などの日常的な動作に重要であるが,人間本来の65〜70度程度の垂直視野角に対して35〜45度程度しか提示できていない.そこで我々は,既存のHMD内部の鉛直下方向に対し下方視野用のLCDを新しく追加し,下方視野を拡大したHMDの開発と評価を行った.作成したHMDには臨場感の向上を目的としたVRモードと,外部に取り付けたカメラの映像をLCDに投影することで卓上作業の作業効率化と首運動の負担軽減を目的としたVST(Video See-thro...
Conference Paper
A human gaze not only has the meaning that someone is looking at something, but also has various effects on the surrounding people. For example, previous studies have shown that attention is induced in the gaze direction of others and that consciousness of being seen by others affects human behavior. In the future, android robots will play an activ...
Conference Paper
In wearable computing environments, users acquire visual information in various scenes using a head mounted display (HMD). However, this induces problems due to their differences from conventional displays such as smartphone and e-books. In this research, we focused on the problem of vertical shock caused by walking. This problem interferes with se...
Article
Full-text available
Today in Japan, comfortable lifestyle and environment realized by abundant electric power is being questioned by energy consumption reduction policies called "cool biz" in summer, and "warm biz" in winter. One reason for these policies is the bad energy consumption efficiency of current air conditioning systems that cool or warm indirectly human bo...
Conference Paper
In recent years, many studies relating biometric information and feelings have been done. Among them, in this paper, we aim to verify the influence on ourselves and surroundings by visualizing emotions. Have a plurality of subjects perform a simple task with a pulse wave sensor attached to the ear. Visualize one's emotion by color and observe how t...
Chapter
In this study, we investigated the difference between head-mounted displays (HMDs) and smartphone displays on the priming effects for photo-taking behaviors. HMDs appear to be the successor of mobile displays, including smartphone displays. However, HMDs possibly have their own effects on the human mind and body. It seems that the content shown on...
Article
Full-text available
We propose a novel road monitoring system named YKOB (Your Kinetic Observation Bike) based on participatory sensing. YKOB collects acceleration signals using smartphones worn by cyclists, and analyzes the collected signals to investigate road surface condition. When a bicycle passes on a bump or a dimple, its wheels vibrate. The vibrations are tran...
Conference Paper
Full-text available
スポーツは健康に良いとされるが,複数人で行う場合には運動能力の差により楽しさが損なわれ,持続することが難しい.広いスペースが必要となる場合も多く,気軽に行うことが困難である.そこで本研究では,幅広く親しまれている鬼ごっこに着目し,デジタル技術と融合して,走力差を軽減させ,狭いスペースでもプレイ可能なデジタル鬼ごっこを提案する.システムはスマートフォンやVR ゴーグル等のみで構成できるようにし,所有デバイスや安価なデバイスでプレイ可能なものにする.
Conference Paper
Users should always be able to receive information when using a head-mounted display (HMD) anytime, anywhere. Users can watch content shown on an HMD hands-free even when moving or working. It seems that presenting specific information affects humans. In this paper, we investigate the effects on listening to speech information that are caused by pr...
Conference Paper
Full-text available
Currently, about 40% of the Japanese people in their twenties overeat [1][2]. This paper proposes to use the variation in the autonomic nervous system (ANS) activity to detect when the person is satiated in order to reduce overeating. Seven healthy adult male subjects, (22 to 23 years old) electrocardiogram (ECG) was recorded using a wireless elect...
Conference Paper
Full-text available
肥満は糖尿病や心疾患などの生活習慣病を引き起こす要因とされており,厚生労働省はこの予防のために対策を行っているが,10年前から肥満患者の数は減少していないのが現状である.肥満対策の1つとして,咀嚼回数を増やすことが挙げられる.肥満は早食いの人に多い傾向にあるため,ゆっくりよく噛んで食事をすることが重要である.そこで,本研究では,日常的に扱うことのできるデバイスを用いて,咀嚼回数向上を支援するシステムを提案する.本システムにより,日常的に咀嚼を意識させ,咀嚼回数向上の支援を図る.実際に咀嚼回数が増加するか評価実験を行った結果,フィードバックを返すことが有意であることが認められ,咀嚼回数向上の支援に有効であることが示された.
Article
Full-text available
We propose a novel road monitoring system named YKOB (Your Kinetic Observation Bike) based on participatory sensing. YKOB collects acceleration signals using smartphones worn by cyclists, and analyzes the collected signals to investigate road surface condition. When a bicycle passes on a bump or a dimple, its wheels vibrate. The vibrations are tran...
Conference Paper
Full-text available
In order to reduce the discomfort caused by body chillness, we have developed a wearable individual heating device to be mounted on the wrist. This device provides a hot thermal sensation in the arm and the whole body by warming only the back of the wrist. However, it does not provide enough thermal sensation to affect fingertips chillness. We veri...
Conference Paper
So far, approximately 30 kinds of sleep disorders have been raised, and irregular sleep rhythm caused by disturbance of sleep induction and nocturnal awakening is one important factor in lifestyle-related diseases. Therefore, evaluating quality of sleep on a daily basis has a great significance for healthcare. On the other hand, in late years smart...
Conference Paper
Full-text available
Quantifying athletes' training helps to improve the efficiency of the training. Though training quantification using multi-modal sensing has been widely applied recently, few cases dealt with anaerobic sports such as short-distance running. This study attempts to provide a quantitative evaluation of the track and field short-distance running using...
Conference Paper
Full-text available
Today in Japan, comfortable lifestyle and environment realized by abundant electric power is being questioned by energy consumption reduction policies called " cool biz " in summer, and " warm biz " in winter. One reason of these policies is the bad energy consumption efficiency of current airconditioning systems that cool or warm indirectly human...
Article
Recently, new cell phone services enable taking input by speaking to a quasi-agent using highly accurate speech recognition technologies. However, there are two problems when equipping a vehicle with these technologies. First, we do not understand yet the effect on driver’s usability performance of a car navigation system equipped with spoken dialo...
Conference Paper
The speech interface (I/F) for car navigation is changing from an input method with restricted pre-defined instructions and sequence, to an input method accepting natural language. Though the latter has high degree of freedom, it may induce increasing driver used resources. In this paper, we watch physiological, psychological, and physical indices...
Conference Paper
Several researches have been investigation the effect of direct human body cooling and warming. Recently, a Japanese research team developed a portable system using Peltier elements that can both cool and warm neck. It is expected to become widespread since it enables to maintain thermal comfort while being low-energy consumption. Though cooling wa...
Conference Paper
Full-text available
Crowdsensing has been widely investigated and its applications are being explored. We have used accelerometers embedded in the smartphone carried by bicycle users to detect road surface damages. However, detected damages locations are not aggregated and often, the same road surface damage can be detected several times at different locations due to...
Conference Paper
Full-text available
Due to copyright constraints and that infants are subject, most picture books are not sufficiently supported by e-books. On the other hand, there is a need for the introduction of ICT into picture books, to make young children reading more effective. Therefore, we are studying a mechanism to that enable to set and perform various digital effects th...
Conference Paper
Full-text available
Mental for the space that there is itself differs by individuals and mood at that time. In certain time and place, it is intended to guide the appropriate space around the particular person, and conducted research on the relationship of the space and the human environment information. In this study, actually acquired survey data in the commercial c...
Conference Paper
Full-text available
With the recent fall in the prices of small and high resolution projectors, it has become increasingly popular to project images onto a screen. However, because viewers can see all of the images projected on a screen at a given time, the presenter is not able to present only a portion of the projected information. In other words, the viewers cannot...
Conference Paper
Full-text available
This paper describes a participatory theatrical performance named YOUPLAY. In YOUPLAY, a general person who is usually treated as an audience member becomes an actor and plays a character role in the performance. He/she wears several types of equipments such as sensors and a microphone, and experiences an interactive story. We found during the deve...
Conference Paper
Full-text available
Recently, users can always see the information by wearable computing technologies. Researchers have proposed various information presentation methods according to user context. We have proposed the system called Primer Streamer [2] that unconsciously leads the user to the specific information by presenting the visual information that is related to...
Conference Paper
Full-text available
There are various approaches to recognizing user actions for interactive arts. By making a system interactive, the audience has more fun because they are participating, and the artists can translate what is in their imagination more richly. Since user actions have great variety and the restrictions on installations are diverse, conventional systems...
Conference Paper
Full-text available
Recently, environments in which users can always see information is becoming realistic due to the development of wearable computing. Researchers have proposed various information presentation methods for different situations. However, in wearable computing environments, since the user does not always need a particular piece of information, there sh...
Article
Full-text available
Various wearable computing devices face problems with their power supplies, communication channels, and placement. Conductive clothes can resolve these problems, but it is still difficult to know the positions of devices on the conductive fabric. Therefore, we propose a method to detect the positions of such devices by using a camera. To detect the...
Conference Paper
Full-text available
Various wearable computing devices face problems with their power supplies, communication channels, and placement. Conductive clothes can resolve these problems, but it is still difficult to know the positions of devices on the conductive fabric. Therefore, we have devised a method to detect the positions of such devices by using a camera. To detec...

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