記述言語：その他   掲載種別：研究論文（その他学術会議資料等）   出版者・発行元：International Conference on Intelligent User Interfaces, Proceedings IUI  

Embedding technology into day-to-day wearables and creating smart devices such as smartwatches and smart-glasses has been a growing area of interest. In this paper, we explore the interaction around face masks, a common accessory worn by many to prevent the spread of infectious diseases. Particularly, we propose a method of using the straps of a face mask as an input medium. We identified a set of plausible gestures on mask straps through an elicitation study (N = 20), in which the participants proposed different gestures for a given referent. We then developed a prototype to identify the gestures performed on the mask straps and present the recognition accuracy from a user study with eight participants. Our results show the system achieves 93.07% classification accuracy for 12 gestures.

DOI： 10.1145/3581641.3584062

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その他リンク： https://dblp.uni-trier.de/db/conf/iui/iui2023.html#YamamotoMWS23

掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS  

The rise in population and aging has led to a significant increase in the number of individuals affected by common causes of vision loss. Early diagnosis and treatment are crucial to avoid the consequences of visual impairment. However, in early stages, many visual problems are making it difficult to detect. Visual adaptation can compensate for several visual deficits with adaptive eye movements. These adaptive eye movements may serve as indicators of vision loss. In this work, we investigate the association between eye movement and blurred vision. By using Electrooculography (EOG) to record eye movements, we propose a new tracking model to identify the deterioration of refractive power. We verify the technical feasibility of this method by designing a blurred vision simulation experiment. Six sets of prescription lenses and a pair of flat lenses were used to create different levels of blurring effects. We analyzed binocular movements through EOG signals and performed a seven-class classification using the ResNet18 architecture. The results revealed an average classification accuracy of 94.7% in the subject-dependent model. However, the subject-independent model presented poor performance, with the highest accuracy reaching only 34.5%. Therefore, the potential of an EOG-based visual quality monitoring system is proven. Furthermore, our experimental design provides a novel approach to assessing blurred vision.

DOI： 10.1109/EMBC40787.2023.10341004

Web of Science

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その他リンク： https://dblp.uni-trier.de/db/conf/embc/embc2023.html#WeiLPMIUK23

掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：Proceedings - SIGGRAPH 2023 Emerging Technologies  

Enhancing human capabilities through the use of multiple bodies has been a significant research agenda. When multiple bodies are synchronously operated in different environments, the differences in environment placement make it difficult to interact with objects simultaneously. In contrast, if automatic control is performed to complement the differences and to perform a parallel task, the mismatch between the user and robotic arm movements generates visuomotor incongruence, leading to a decline in embodiment across the body. This can lead to difficulty completing tasks or achieving goals, and may even cause frustration or anxiety. To address this issue, we have developed a system that allows a parallel operation of synchronized multiple robotic arms by assisting the arm towards which the user's gaze is not directed while maintaining the sense of embodiment over the robotic arms.

DOI： 10.1145/3588037.3595401

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その他リンク： https://dblp.uni-trier.de/db/conf/siggraph/siggraph2023et.html#KawamuraKFMKS23

掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：Proceedings - 2023 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2023  

We propose a virtual reality (VR) baseball batting system for assessing individual decision-making skill based on swing judgement of pitch types and the underlying prediction ability by manipulating combinations of pitching motion and ball trajectory cues. Our analy-sis of data from 10 elite baseball players revealed highly accurate swing motions in conditions during which the batter made precise swing decisions. Delays in swing motion were observed in conditions during which predictive cues were mismatched. Our findings indicated that decision-making based on pitch type influences the inherent stability of decision and accuracy of hitting, and that most batters made decisions based on pitching motion cues rather than on ball trajectory.

DOI： 10.1109/VRW58643.2023.00230

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その他リンク： https://dblp.uni-trier.de/db/conf/vr/vr2023w.html#TaniKMFSK23

記述言語：その他   掲載種別：研究論文（その他学術会議資料等）   出版者・発行元：2022 10th International Conference on Affective Computing and Intelligent Interaction, ACII 2022  

Smiling plays a crucial role in human communication. It is the most frequent expression shown in daily life. Smile analysis usually employs computer vision-based methods that use data sets annotated by experts. However, cameras have space constraints in most realistic scenarios due to occlusions. Wearable electromyography is a promising alternative; however, issue of user comfort is a barrier to long-term use. Other wearable-based methods can detect smiles, but they lack consistency because they use subjective criteria without expert annotation. We investigate a wearable-based method that uses optical sensors for consistent smile intensity estimation while reducing manual annotation cost. First, we use a state-of-art computer vision method (OpenFace) to train a regression model to estimate smile intensity from sensor data. Then, we compare the estimation result to that of OpenFace. We also compared their results to human annotation. The results show that the wearable method has a higher matching coefficient (r=0.67) with human annotated smile intensity than OpenFace (r=0.56). Also, when the sensor data and OpenFace output were fused, the multimodal method produced estimates closer to human annotation (r=0.74). Finally, we investigate how the synchrony of smile dynamics among subjects and their average smile intensity are correlated to assess the potential of wearable smile intensity estimation.

DOI： 10.1109/ACII55700.2022.9953867

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その他リンク： https://dblp.uni-trier.de/db/conf/acii/acii2022.html#MasaiPSKK22

記述言語：その他   掲載種別：研究論文（学術雑誌）   出版者・発行元：IEEE Access  

Recognizing foot gestures can be useful for subtle inputs to appliances and machines in everyday life, but for a system to be useful, it must allow users to assume various postures and work in different spaces. Camera-based and pressure-based systems have limitations in these areas. In this paper, we introduce AnkleSens, a novel ankle-worn foot sensing device that estimates a variety of foot postures using photo reflective sensors. Since our device is not placed between the foot and the floor, it can predict foot posture, even if we keep the foot floating in the air. We developed a band prototype with 16 sensors that can be wrapped around the leg above the ankle. To evaluate the performance of the proposed method, we used eight foot postures and four foot states as preliminary classes. After assessing a test dataset with the preliminary classes, we integrated the eight foot postures into five. Finally, we classified the dataset with five postures in four foot states. For the resulting 20 classes, the average classification accuracy with our proposed method was 79.57% with user-dependent training. This study showed the potential of foot posture sensing as a new subtle input method in daily life.

DOI： 10.1109/ACCESS.2022.3158158

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記述言語：その他   掲載種別：研究論文（学術雑誌）   出版者・発行元：Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)  

With the widespread use of inkjet-printable conductive silver nanoparticle inks, lightweight, thin, and portable wearable displays that combine electrothermal circuit patterns and thermochromic inks have attracted much attention in recent years. Thermochromic displays, which undergo reversible color change according to temperature change, have the problem of low responsiveness due to the delay of heating and cooling. In this study, we propose a high-speed thermochromism control method that integrates a water-cooling circuit and an electric heating circuit using silver nanoparticle ink printing. As an evaluation experiment, we compared the cooling time of an electro-thermal pattern with and without the water-cooling circuit and verified the usefulness of the proposed method. In addition, we have developed applications such as PerformEyebrow, an artificial eyebrow device that extends facial expressions, and dynamic masks and questionnaires based on thermochromism, which demonstrate the potential of our high-speed color control method as a new media technology.

DOI： 10.1007/978-3-031-05409-9_6

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その他リンク： https://dblp.uni-trier.de/db/conf/hci/hci2022-2.html#MasuiTTSMH22

掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：Proceedings - 2022 IEEE International Symposium on Mixed and Augmented Reality Adjunct, ISMAR-Adjunct 2022  

Virtual reality (VR) is gaining interest as a platform for sports skills training. VR allows for information manipulation and feedback that would be difficult in reality. This is particularly useful in open skill sports where players must adjust their behavior in response to environmental factors. Auditory feedback (sonification) is constructive for sports training in VR. However, this has not been well studied in open skill-specific situations due to the difficulty of accounting for environmental factors in reality. This study focuses on a serve return, an important scene in tennis. It investigates the effects of sonification on the forehand return stroke in VR by comparing score displays and trajectory visualizations. We designed the sonification based on the difference between experienced and novice players' movements in VR. We then conducted a between-subjects experiment to investigate the effect of the sonification (N=20). The results showed that the system with sonification effectively improved the timing of hip movement for preparing a slow serve return compared to the system without sonification.

DOI： 10.1109/ISMAR-Adjunct57072.2022.00182

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その他リンク： https://dblp.uni-trier.de/db/conf/ismar/ismar2022a.html#MasaiKMSK22

記述言語：その他   掲載種別：研究論文（その他学術会議資料等）  

DOI： 10.1007/978-3-030-78468-3_40

記述言語：その他   掲載種別：研究論文（その他学術会議資料等）  

DOI： 10.1109/ismar50242.2020.00030

記述言語：その他   掲載種別：研究論文（その他学術会議資料等）  

DOI： 10.1109/ISMAR50242.2020.00064

記述言語：その他   掲載種別：研究論文（その他学術会議資料等）  

DOI： 10.1145/3384657.3384787

記述言語：その他   掲載種別：研究論文（その他学術会議資料等）  

DOI： 10.1145/3374920.3374936