Papers by Homei Miyashita
The Journal of the Society for Art and Science
A household accounting system should be a "tool for thinking" to create an economical plan for th... more A household accounting system should be a "tool for thinking" to create an economical plan for the future. We propose a new household accounting system that visualizes expenditures and incomes through the placement of rectangles whose areas are proportional to the money amount: Thus, the user can arrange, move, cut off, and connect each item and grasp the state of a family budget. The purpose of this system is making a user look back to the balance of payments naturally by acquiring some awareness through interaction with each item. In this paper, we tested the proposed system by the input and arrange experiment and we describe about the result of long term use.
Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology
This study used front-camera face tracking to realize interactions such as blowing on a smartphon... more This study used front-camera face tracking to realize interactions such as blowing on a smartphone to make it foggy or tapping on it to make it puff. We used the parameters of the lower jaw opening, the lip closing, and the lip stretching to identify these actions. Additionally, we enabled pointing based on the position and direction of the face and implemented four applications using this interface. CCS CONCEPTS • Human-centered computing → Human computer interaction (HCI).
Frontiers in Virtual Reality
Electric tastes can present various taste modulation effects using stimulation waveforms. Present... more Electric tastes can present various taste modulation effects using stimulation waveforms. Presenting and stopping cathodal stimulation or presenting anodal stimulation, for example, can enhance the saltiness of foods and drinks. If the taste of low-sodium foods improves because of these effects, it can provide low-sodium dieters with both mental satisfaction and nutritional health benefits. However, no studies on the effect of saltiness enhancement on electric taste in low-sodium dieters have been conducted. In this study, we first designed and investigated a stimulation waveform suitable for saltiness enhancement of low-sodium foods. This stimulation waveform combined the effects of presenting and stopping cathodal stimulation and presenting anodal stimulation and showed a saltier enhancement than the existing waveforms. Next, we conducted an experiment with individuals who were or had been on a low-sodium diet. In this experiment, the effect of saltiness enhancement on the propose...
2021 IEEE International Electron Devices Meeting (IEDM), 2021
This paper describes a mechanism for recording and reproducing taste similarly as humans record a... more This paper describes a mechanism for recording and reproducing taste similarly as humans record and reproduce audiovisual perception. The ion-phoretic and spray mixing methods are described for presenting taste; these methods are compared, and their prospects are discussed.
We propose a note tool for making lecture notes comprehensive and memorable by adding visual embe... more We propose a note tool for making lecture notes comprehensive and memorable by adding visual embellishments on normal texts. To use this software we do not need to use any pointing devices and can make lecture notes quickly. This software has two features. One is a function to generate textboxes automatically. Another is a function to execute command to add visual embellishments by hitting PC. 1. はじめに
It is necessary to refer to sentences and diagrams at different positions in the page when you re... more It is necessary to refer to sentences and diagrams at different positions in the page when you read long document. In many cases, it is solved by going back and forth within the page by scrolling. In this paper, We propose a temporary scrolling method assuming round trip as a new scrolling method in smartphone. Apart from flick scrolling, scrolling is performed by drawing a circle on the screen. In this paper, the page automatically moves to the position where the scroll is started at the timing when the finger is released. It is possible to complete the scroll operation requiring reciprocation by scrolling with normal flicking by scrolling in one direction.
Your eye-gaze is so weak that you cannot deliver it at far spot. And, it is difficult to deliver ... more Your eye-gaze is so weak that you cannot deliver it at far spot. And, it is difficult to deliver your eye-gaze at the event site when you are watching live broadcasting of the event such as live stage and talk show. In this paper, we propose a system for live broadcasting that overlays eye-gaze information of the viewers through the network over the real spot of the live. Broadcaster sets a camera and a projector whose projection area covers the camera capture area. Viewers send eye-gaze to live broadcasting side. And then broadcaster projects viewer’s eye-gaze over the real spot. Viewer can deliver her eye-gaze to the real spot in live broadcasting area. A viewer’s eye-gaze may catch audience’s eye-gaze at the live broadcasting area, and the target that get some viewer’s eye-gaze might get more and more eye-gaze of both viewer’s and audience’s. We also discussed real hot eye-gaze system with halogen heater.
However, in current 3D printing process, 3D printers are utilized in the final stage of printing ... more However, in current 3D printing process, 3D printers are utilized in the final stage of printing to produce the completed 3D model. The 3D models are designed with modeling software during the pre-printing stage (as shown in Figure 1, top). Currently, 3D printers are not used in the initial design stage, because 3D models are typically incomplete at this stage owing to lack of clear goal. In addition, it is often necessary to use trial and error (i.e., modifying the 3D model) to improve a design after an object is printed; in this case, users must remove already printed objects from the printer platform and reconfigure printing parameters.
Sentences that contain negative emotions such as anger and sadness make readers uncomfortable. An... more Sentences that contain negative emotions such as anger and sadness make readers uncomfortable. And some study reported phenomenon that these emotions tend to spread to even more peoples. In this paper, we propose five methods Reframing, Euphemism, Changing the end of a sentence, Koshikudake and Exaggeration to rewrite some phases include uncomfortable for controlling the level of uncomfortable in sentences. In addition, we also propose three method Gradually paraphrasing, Paraphrasing emotional expressions by users, Declaration of intention by non-functional buttons for easing the negative emotional contagious. We made a prototype system for Twitter tweets for controlling the level of uncomfortable in sentences.
In this thesis, we propose a system that combines video contents and taste by making use of the r... more In this thesis, we propose a system that combines video contents and taste by making use of the reversibility and instantaneity of electric taste. In order to do so it is necessary to determine the timing of presentation based on the different latency before perception of each sense. In this thesis the latency from presentations of electric taste and visual stimuli to their perceptions were measured as basic evaluations for a contents presentation system in which electric taste and video programs are synchronized.
Proceedings of the ACM on Human-Computer Interaction, 2021
In touch interfaces, a target, such as an icon, has two widths: the visual width and the touchabl... more In touch interfaces, a target, such as an icon, has two widths: the visual width and the touchable width. The visual width is the target's appearance, and the touchable width is the area in which users can touch a target and execute an action. In this study, we conduct two experiments to investigate the effects of the visual and touchable widths on touch pointing performance (movement time and success rate). Based on the results, we build candidate models for predicting the movement time and compare them by the values of adjusted R^2 and AIC. In addition, we build a success rate model and test it through cross-validation. Existing models can be applied only to situations where the visual and touchable widths are equal, and we show that our refined model achieves better model fitness, even when such widths are different. We also discuss the design implications of the touch interfaces based on our models.
Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology, 2020
Aiming for the creation and development of taste media, a taste display was developed in this stu... more Aiming for the creation and development of taste media, a taste display was developed in this study that can reproduce tastes measured using taste sensors. By performing iontophoresis on five gels, which contain dissolved electrolytes that reproduce the five basic tastes, the quantity of ions that contact the tongue was controlled. A tasteless gel was added, so that the sum of the currents flowing in the six gels could be kept constant, ensuring a uniform amount of stimulation on the tongue. The measured tastes could be successfully reproduced through calibration, in which the indicated taste levels were matched with the taste-sensor measurements. Furthermore, video-editing software was adapted to edit taste information as well as recorded audio and video. In addition, effector and equalizer prototypes were built that can not only reproduce the recorded tastes in their original states but also adjust the tastes to match individual preferences.
Adjunct Proceedings of the 34th Annual ACM Symposium on User Interface Software and Technology, 2021
Reproducing the taste of food and beverages as a media technology is an emerging problem of comme... more Reproducing the taste of food and beverages as a media technology is an emerging problem of commercial value and entertainment utility. An already developed taste reproduction system uses electrolyte containing gels controlled by electric current to reproduce taste by ion-phoresis. In this study, an alternative taste reproduction mechanism was proposed that sprays a mixture of liquids on a rolling transparent sheet placed on a screen that displays the image of the food item under consideration for reproduction of its taste.
Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems, 2017
Fused deposition modeling (FDM) 3D printers form objects by stacking layers having a linear struc... more Fused deposition modeling (FDM) 3D printers form objects by stacking layers having a linear structure. To print fine structures, an appropriate choice of parameters is necessary, or printing error occurs. On the other hand, the printing error is exploited as an expression technique. However, the relation between the printed structure and the parameters causing the printing error is unclear. In this paper, we focus on the height position of the extruder and the amount of extruded material, and explore the combination of these parameters to enhance the capability of FDM. By extending an equation that calculates the amount of material from the layer height, we investigate the behavior and structure of material extruded from various height positions. On the basis of experimental results, the printed structure is classified into six categories according to the structural feature. We describe these structural features and demonstrate examples with new inherent expressions for FDM.
Proceedings of the 2019 ACM International Conference on Interactive Surfaces and Spaces, 2019
To achieve better touch GUI designs, researchers have studied optimal target margins, but state-o... more To achieve better touch GUI designs, researchers have studied optimal target margins, but state-of-the-art results on this topic have been observed for only middle-size touchscreens. In this study, to better determine more practical target arrangements for smartphone GUIs, we conducted four experiments to test the effects of gaps among targets on touch pointing performance. Two lab-based and two crowd-based experiments showed that wider gaps tend to help users reduce the task completion time and the rate of accidental taps on unintended items. For 1D and 2D tasks, the results of the lab-based study with a one-handed thumb operation style showed that 4-mm gaps were the smallest sizes to remove negative effects of surrounding items. The results of the crowd-based study, however, indicated no specific gaps to completely remove the negative effects.
Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems, 2016
The performance of trajectory-based tasks is modeled by the steering law, which predicts the requ... more The performance of trajectory-based tasks is modeled by the steering law, which predicts the required time from the index of difficulty (ID). This paper focuses on the fact that the time required to pass through a straight path with linearly-varying width alters depending on the direction of the movement. In this study, an expression for the relationship between the ID of narrowing and widening paths has been developed. This expression can be used to predict the movement time needed to pass through in the opposite direction from only a few data points, after measuring the time needed in the other direction. In the experiment, the times for five IDs were predicted with high precision from the measured time for one ID, thereby illustrating the effectiveness of the proposed method.
Adjunct Proceedings of the 28th Annual ACM Symposium on User Interface Software & Technology, 2015
A method to create a mobile head-mounted display (HMD) a proprietary controller for interactive v... more A method to create a mobile head-mounted display (HMD) a proprietary controller for interactive virtual reality (VR) content is proposed. The proposed method uses an interface cartridge printed with a conductive pattern. This allows the user to operate a smartphone by touching on the face of the mobile HMD. In addition, the user can easily create a mobile HMD and interface cartridge using a laser cutter and inkjet printer. Changing the form of the conductive pattern allows the user to create a variety of controllers. The proposed method can realize an environment that can deliver a variety of interactions with VR content.
In this paper, we propose Thermoscore, a musical score form that dynamically alters the temperatu... more In this paper, we propose Thermoscore, a musical score form that dynamically alters the temperature of the instrument/play-er interface. We developed the first version of the Thermoscore display by lining Peltier devices on piano keys. The system is controlled by MIDI notes-on messages from an MIDI sequencer, so that a composer can design songs that are sequences of temperature for each piano key. We also discuss methodologies for composing with this system, and suggest two approaches. The first is to make desirable keys (or other keys) hot. The second one uses chroma-profile, that is, a radar chart representation of the frequency of pitch notations in the piece. By making keys of the same chroma hot in reverse pro-portion to the value of the chroma-profile, it is possible to constrain the performer's improvisation and to bring the tonal-ity space close to a certain piece.
In this paper, we propose an improvisation support system that makes advice after a player hits t... more In this paper, we propose an improvisation support system that makes advice after a player hits the key via temperature sensation. Differ from conventional improvisation support system, it does not change the es- sential function of the instrument itself. To examine the effectiveness of the system, we carried out an experiment and compared it with the typi- cal improvisation support system and the instrument with no support. Though traditional improvisation support system was rated more enjoy- able by subjects, our system certainly supported them and facilitated learning the harmony, namely, fostered their music ability.
Proceedings of the adjunct publication of the 27th annual ACM symposium on User interface software and technology - UIST'14 Adjunct, 2014
There has been research using software simulations to support the learning of electronic modeling... more There has been research using software simulations to support the learning of electronic modeling by beginners. There have also been systems to extend workspaces and support electronic modeling on tabletop interfaces. However, in the case of software-based circuit operation, as it is not possible to operate the actual elements, the feeling of actually moving the elements is lacking. For this reason, we are proposing a system that extends the sense of reality in software simulators through the use of projection mapping. This will make it possible to actually give the impression of moving the elements by using a software simulator, and to achieve both high speed and a sense of reality through trial and error.
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Papers by Homei Miyashita