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Employment (3)

University of Tsukuba: Tsukuba, Ibaraki, JP

2023-04-01 to present | Associate Professor (Faculty of Engineering, Information and Systems)
Employment
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University of Tsukuba

University of Tsukuba: Tsukuba, JP

2014-03-01 to 2023-03-31 | Assistant Professor (Faculty of Engineering, Information and Systems)
Employment
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ZEMPO Keiichi; 善甫 啓一

National Institute of Advanced Industrial Science and Technology: Tsukuba, JP

2013-10-01 to 2014-02-28 (Center for Service Research)
Employment
Source: Self-asserted source
ZEMPO Keiichi; 善甫 啓一

Works (36)

Cognitive Conflict Classification Depending on Background Auditive Environment Using Support Vector Machine Based on Near-Infrared Hemoencephalography

2025 | Book chapter
DOI: 10.1007/978-3-031-78516-0_37
Contributors: Kota Yokoyama; Keiichi Zempo; Sandra Puentes
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Crossref

Basic study on underwater acoustic positioning using time-of-flight and direction-of-arrival with semi-circular array

Japanese Journal of Applied Physics
2025-04-09 | Journal article
DOI: 10.35848/1347-4065/adcacd
Contributors: Taiga Saito; Tadashi EBIHARA; Yuji Sato; Atsushi Tsuchiya; Naoto Wakatsuki; Keiichi Zempo
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Crossref

Development and Evaluation of an Auditory VR Generative System via Natural Language Interaction to Aid Exposure Therapy for PTSD Patients

ACM Transactions on Computing for Healthcare
2025-03-19 | Journal article
DOI: 10.1145/3723048
Contributors: Yuta Yamauchi; Keiko Ino; Masanori Sakaguchi; Keiichi Zempo
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Self-Localization Method Using a Single Acoustic Ranging Sensor Based on Impulse Response and Doppler Effect

IEEE Journal of Indoor and Seamless Positioning and Navigation
2024 | Journal article
DOI: 10.1109/JISPIN.2024.3403519
Contributors: Atsushi Tsuchiya; Naoto Wakatsuki; Tadashi Ebihara; Keiichi Zempo; Koichi Mizutani
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Auditory AR System to Induce Pseudo-Haptic Force Feedback for Lateral Hand Movements Using Spatially Localized Sound Stimuli

2024-12-03 | Conference paper
DOI: 10.1145/3681756.3697955
Contributors: Daniel Oswaldo Lopez Tassara; Naoto Wakatsuki; Keiichi Zempo
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Individual Diffusion Auralize Display Using an Array of Audio Source Position Tracking Ultrasonic Speakers

2024-12-03 | Conference paper
DOI: 10.1145/3681756.3697976
Contributors: Hyuma Auchi; Akito Fukuda; Yuta Yamauchi; Homura Kawamura; Keiichi Zempo
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TAI_ON: Audible Body and Its Enveloping Rhythm

2024-12-03 | Conference paper
DOI: 10.1145/3680529.3688958
Contributors: Seioh Ezaki; Keiichi Zempo
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pSCOUTER: Time-Series Emotion Classification Using Contactless Measured Multimodal Biosignals in Medical Diagnosis

2024-10-05 | Conference paper
DOI: 10.1145/3675094.3677582
Contributors: Homura Kawamura; Zhaolong Wang; Kotone Harima; Tatuya Yamanishi; Tomohumi Miura; Yuka Maeda; Yukihiko Okada; Keiichi Zempo
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Auditory Interface for Empathetic Synchronization of Facial Expressions between People with Visual Impairment and the Interlocutors

2024-04-04 | Conference paper
DOI: 10.1145/3652920.3652937
Contributors: Takayuki Komoda; Hisham Elser Bilal Salih; Tadashi Ebihara; Naoto Wakatsuki; Keiichi Zempo
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VR remote tourism system with natural gaze induction without causing user discomfort

2024-04-04 | Conference paper
DOI: 10.1145/3652920.3652938
Contributors: Shogo Aoyagi; Takayoshi Yamada; Kelvin Cheng; Soh Masuko; Keiichi Zempo
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Attracting Effect of Pinpoint Auditory Glimpse on Digital Signage

IEEE Access
2023 | Journal article
DOI: 10.1109/ACCESS.2023.3270909
Contributors: Noko Kuratomo; Haruna Miyakawa; Tadashi Ebihara; Naoto Wakatsuki; Koichi Mizutani; Keiichi Zempo
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Auditory VR Generative System for Non-Experts to Reproduce Human Memories Through Natural Language Interactions

2023-11-28 | Conference paper
DOI: 10.1145/3610542.3626140
Contributors: Yuta Yamauchi; Keiko Ino; Keiichi Zempo
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Synchronized Expressions: An Auditory Interface for Naturally Harmonizing Facial Expressions between People with Visual Impairment and Sighted People

2023-11-05 | Conference paper
DOI: 10.1145/3626485.3626537
Contributors: Takayuki Komoda; Hisham Elser Bilal Salih; Tadashi Ebihara; Naoto Wakatsuki; Keiichi Zempo
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Crossref

Gaze Cue Switcher for Joint Attention in VR Remote Tourism

2023-10-13 | Conference paper
DOI: 10.1145/3607822.3618012
Contributors: Shogo Aoyagi; Takayoshi Yamada; Kelvin Cheng; Soh Masuko; Keiichi Zempo
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Crossref

Effect of voice imitation using voice conversion by avatar on customer service in Virtual Environments

2023-10-09 | Conference paper
DOI: 10.1145/3611659.3617215
Contributors: Hiiro Okano; Yukihiko Okada; Naoto Wakatsuki; Keiichi Zempo
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Effects of symmetrical avatar arm movements on the sense of ownership of both hands inverted in a mirror

2023-10-09 | Conference paper
DOI: 10.1145/3611659.3616892
Contributors: Toko Fujita; Moeki Horii; Luis David Torres Mailleux; Masatatsu Miyagi; Yukihiko Okada; Keiichi Zempo
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Whispering salesperson: perceptual illusion of interpersonal distance and ventriloquism effect in service of virtual environment by use of whisper voice

2023-10-09 | Conference paper
DOI: 10.1145/3611659.3617202
Contributors: Mizuki Yabutani; Azusa Yamazaki; Naoto Wakatsuki; Yukihiko Okada; Keiichi Zempo
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Simultaneous distance measurement and information transmission in mobile environment using digital acoustic communication

Japanese Journal of Applied Physics
2023-07-01 | Journal article
DOI: 10.35848/1347-4065/acbf5c
Contributors: Kohei Wada; Tadashi Ebihara; Naoto Wakatsuki; Keiichi Zempo; Koichi Mizutani
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Effect of Salesperson Avatar Automatically Mimicking Customer’s Nodding on the Enjoyment of Conversation in Virtual Environments

2023-03-12 | Conference paper
DOI: 10.1145/3582700.3583711
Contributors: Takumi Wakabayashi; Yukihiko Okada; Keiichi Zempo
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Melting into shadow: Toward less cognitively loaded communication in the dark

2023-03-12 | Conference paper
DOI: 10.1145/3582700.3583712
Contributors: Mizuki Yabutani; Hiroki Uchida; Koichi Mizutani; Naoto Wakatuki; Keiichi Zempo
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Rapport Building via a Digital Avatar with a “Voice” Entering into a Customer’s Personal Space

2023-03-12 | Conference paper
DOI: 10.1145/3582700.3583695
Contributors: Azusa Yamazaki; Naoto Wakatsuki; Koichi Mizutani; Yukihiko Okada; Keiichi Zempo
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EYEDi: Graphical Authentication Scheme of Estimating Your Encodable Distorted Images to Prevent Screenshot Attacks

IEEE Access
2022 | Journal article
DOI: 10.1109/ACCESS.2021.3138093
Contributors: Takayuki Kawamura; Tadashi Ebihara; Naoto Wakatsuki; Keiichi Zempo
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Mouth-in-the-Door: The Effect of a Sound Image of an Avatar Intruding on Personal Space That Deviates in Position From the Visual Image

IEEE Access
2022 | Journal article
DOI: 10.1109/ACCESS.2022.3222804
Contributors: Keiichi Zempo; Azusa Yamazaki; Naoto Wakatsuki; Koichi Mizutani; Yukihiko Okada
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Crossref

Zeroth: The self-awareness sense embodied by facing the coexistence of the physical and virtual bodies in the mirror

2022-12-06 | Conference paper
DOI: 10.1145/3550470.3558426
Contributors: Ami Miura; Hiroki Uchida; Takayuki Kawamura; Keiichi Zempo
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Avatar Voice Morphing to Match Subjective and Objective Self Voice Perception

2022-11-29 | Conference paper
DOI: 10.1145/3562939.3565671
Contributors: Hiiro Okano; Keisuke Mizuno; Haruna Miyakawa; Keiichi Zempo
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Impact on the Quality of Interpersonal Relationships by Proximity using the Ventriloquism Effect in a Virtual Environment

2022-11-20 | Conference paper
DOI: 10.1145/3532104.3571460
Contributors: Azusa Yamazaki; Naoto Wakatsuki; Koichi Mizutani; Yukihiko Okada; Keiichi Zempo
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Spatialphonic360: Accuracy of the Arbitrary Sound Image Presentation using Surrounding Parametric Speakers

2022-11-20 | Conference paper
DOI: 10.1145/3532104.3571462
Contributors: Noko Kuratomo; Hiroki Uchida; Tadashi Ebihara; Naoto Wakatsuki; Koichi Mizutani; Keiichi Zempo
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Crossref

Spatialphonic360: Acoustic Space for Arbitrary Sound Image Presentation Based on Both Ears Tracking

2022-09-11 | Conference paper
DOI: 10.1145/3544793.3560319
Contributors: Hiroki Uchida; Noko Kuratomo; Tadashi Ebihara; Naoto Wakatsuki; Keiichi Zempo
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Indoor self-localization using multipath arrival time measured by a single acoustic ranging sensor

Japanese Journal of Applied Physics
2022-07-01 | Journal article
DOI: 10.35848/1347-4065/ac506c
Contributors: Atsushi Tsuchiya; Naoto Wakatsuki; Tadashi Ebihara; Keiichi Zempo; Koichi Mizutani
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Crossref

Underwater acoustic communication using orthogonal signal division multiplexing with windowing

Japanese Journal of Applied Physics
2022-07-01 | Journal article
DOI: 10.35848/1347-4065/ac51e5
Contributors: Yushi Tabata; Tadashi Ebihara; Hanako Ogasawara; Naoto Wakatsuki; Keiichi Zempo; Koichi Mizutani
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Use of Auditory Cues and Other Strategies as Sources of Spatial Information for People with Visual Impairment When Navigating Unfamiliar Environments

International Journal of Environmental Research and Public Health
2022-03-08 | Journal article
DOI: 10.3390/ijerph19063151
Contributors: Hisham E. Bilal Salih; Kazunori Takeda; Hideyuki Kobayashi; Toshibumi Kakizawa; Masayuki Kawamoto; Keiichi Zempo
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Effects of Audio-Visual Information on Interpersonal Distance in Real and Virtual Environments

2021 | Book chapter
DOI: 10.1007/978-3-030-85607-6_47
Contributors: Azusa Yamazaki; Naoto Wakatsuki; Koichi Mizutani; Yukihiko Okada; Keiichi Zempo
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How Much is the Noise Level be Reduced? – Speech Recognition Threshold in Noise Environments Using a Parametric Speaker –

2021 | Book chapter
DOI: 10.1007/978-3-030-85616-8_31
Contributors: Noko Kuratomo; Tadashi Ebihara; Naoto Wakatsuki; Koichi Mizutani; Keiichi Zempo
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Auditory Uta-Karuta: Development and Evaluation of an Accessible Card Game System Using Audible Cards for the Visually Impaired

Electronics
2021-03-22 | Journal article
DOI: 10.3390/electronics10060750
Contributors: Haruna Miyakawa; Noko Kuratomo; Hisham E. Bilal Salih; Keiichi Zempo
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Sensing Framework for the Internet of Actors in the Value Co-Creation Process with a Beacon-Attachable Indoor Positioning System

Sensors
2020-12-25 | Journal article
DOI: 10.3390/s21010083
Contributors: Keiichi Zempo; Taiga Arai; Takuya Aoki; Yukihiko Okada
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Spot-Presentation of Stereophonic Earcons to Assist Navigation for the Visually Impaired

Multimodal Technologies and Interaction
2020-07-20 | Journal article
DOI: 10.3390/mti4030042
Contributors: Yuichi Mashiba; Ryunosuke Iwaoka; Hisham E. Bilal Salih; Masayuki Kawamoto; Naoto Wakatsuki; Koichi Mizutani; Keiichi Zempo
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