Research using emteq labs devices

Emteq’s technology is based on decades of research validating the measurement of facial muscle activity in emotion research, mental health assessment, brain-computer interaction, user experience analysis and more.

Validating OCOsense Smart Glasses in a Three-Week Home-based Study: Assessing Detection of Eating, Food Identification and the Use of Haptic Feedback to Aid Behaviour Modification

Padmanabhan A., Stankoski S., Panchevski F. Armitage R. M., Cox S., Baert C., Sazdov B., Darkovska M., Kiprijanovska I., Fatoorechi M., Sofronievski B., Indovska E., Nikodinovska A., Kulebanova S., Cleal A., Gjoreski M., Sevenoaks T., Nduka C., Gjoreski H., Yeomans M. R., Appetite, Volume 218, 2026, 108382, ISSN 0195-6663, https://doi.org/10.1016/j.appet.2025.108382.

Sensing the future of eating behaviour measurement: validation of OCOsense glasses to detect chewing behaviour

Armitage, R. M., Padmanabhana, A., Harvey, T., Baert, C., Gjoreski, H., Stanoski, S., Sazdov B., Nduka C. & Yeomans, M. R, Appetite, vol. 213, Supplement, 2025, 108064, ISSN 0195-6663, doi: 10.1016/j.appet.2025.108064.

Pilot study to reduce chewing and eating rates using haptic feedback from the OCOsense glasses

Baert C., Sazdov B., Stankoski S., Gjoreski H., Nduka C. and Jordan C., Appetite, vol. 213, 2025, 108056, ISSN 0195-6663, doi: 10.1016/j.appet.2025.108056

Controlled and Real-Life Investigation of Optical Tracking Sensors in Smart Glasses for Monitoring Eating Behavior Using Deep Learning: Cross-Sectional Study

Stankoski S, Kiprijanovska I, Gjoreski M, Panchevski F, Sazdov B, Sofronievski B, Cleal A, Fatoorechi M, Nduka C, Gjoreski H. JMIR Mhealth Uhealth 2024;12:e59469, DOI: 10.2196/59469

Deep Learning for Facial Expression and Human Activity Recognition Using Smart Glasses

Marinova, M., Chona, E., Kotevski, A., Sazdov, B., Kiprijanovska, I., Stankoski, S., Gjoreski M., Nduka C. & Gjoreski, H. IEEE Access, vol. 13, pp. 48257-48270, 2025, doi: 10.1109/ACCESS.2025.3551610.

FedMMA-HAR: Federated Learning for Human Activity Recognition With Missing Modalities Using Head-Worn Wearables

Gobbetti, A., Gjoreski, M., Gjoreski, H., Lane, N., & Langheinrich, M. IEEE Pervasive Computing, vol. 23, no. 04, pp. 40-49, Oct.-Dec. 2024, doi: 10.1109/MPRV.2024.3475473.

Efficient Real-time On-the-edge Facial Expression Recognition using Optomyography Smart Glasses

Bojan Sofronievski, Ivana Kiprijanovska, Simon Stankoski, Borjan Sazdov, Josif Kjosev, Charles Nduka and Hristijan Gjoreski. International Conference on Intelligent Environments (IE), Ljubljana, Slovenia, 2024 [BEST PAPER Award]

Towards smart glasses for facial expression recognition using OMG and machine learning

Kiprijanovska I., Stankoski S., Broulidakis M.J., Archer J.; Fatoorechi, M., Gjoreski M.; Nduka C., Gjoreski H. 2023. Scientific Reports

Privacy-aware Human Activity Recognition with Smart Glasses for Digital Therapeutics

Sazdov B., Jakimovski S., Stankoski S., Kiprijanovska I.; Sofronievski B., Gjoreski M.; Nduka C., Gjoreski H. 2023. UbiComp/ISWC '23‍

Optomyography-based Sensing of Facial Expression Derived Arousal and Valence in adults with Depression

Broulidakis M.J.; Kiprijanovska I.; Severs L,; Stankoski S., Gjoreski M.; Mavridou I.; Gjoreski H.; Cox S.; Bradwell D.; Stone M.J.; Nduka C., 2023. Frontiers Psychiatry

OCOsenseTM Smart Glasses for Analyzing Facial Expressions Using Optomyographic Sensors

Archer, J., Mavridou, I., Stankoski, S., Broulidakis, M.J., Cleal, A., Walas, P., Fatoorechi, M., Gjoreski, H. and Nduka, C., 2023. IEEE Pervasive Computing.

Predicting Empathy and Other Mental States During VR Sessions Using Sensor Data and Machine Learning

Kizhevska E., Gjoreski, H., & Luštrek, M. Sensors, 25(18), 5766. https://doi.org/10.3390/s25185766

Multi-modal physiological markers of arousal induced by CO2 inhalation in Virtual Reality

Gnacek M., Özhan N., Broulidakis J., Mavridou I., Kostoulas T., Balaguer-Ballester E., Gjoreski M., Gjoreski H., Nduka C., Garner M., Graf E., Seiss E., Information Fusion, vol. 126, part B, 2026, 103643, ISSN 1566-2535, doi: 10.1016/j.inffus.2025.103643

‍Smart Glasses for Gait Analysis of Parkinson’s Disease Patients

Kiprijanovska I.; Panchevski F.; Stankoski S.; Gjoreski M.; Archer J.; Broulidakis J.; Mavridou I.; Hayes B.; Guerreiro T.; Nduka C.; Gjoreski H. 46th ICT and Electronics Convention - MIPRO 2023.

Recognizing Activities of Daily Living using Multi-sensor Smart Glasses

Stankoski S.; Sazdov B.; Broulidakis J.; Kiprijanovska I.; Sofronievski B.; Cox S.; Gjoreski M.; Archer J.; Nduka C.; Gjoreski H. 46th ICT and Electronics Convention - MIPRO 2023.

Facial EMG sensing for monitoring affect using a wearable device.

Gjoreski, M.; Kiprijanovska, I.; Stankoski, S.; Mavridou, I.; Broulidakis, J.; Gjoreski, H.; Nduka, C.Nature Scientific Reports 12, 16876 (2022).

OCOsense: Glasses for Facial Expressions Recognition and Affective Computing in Real World and Augmented Reality

Mavridou, I.; Archer, J.; Gjoreski, H.; Cleal, A.; Broulidakis, J.; Fatoorechi, M.; Kiprijanovska, I.; Stankoski, S.; Gjoreski, M.; Nduka, C.In Adjunct Proceedings of the 2022 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2022 ACM International Symposium on Wearable Computers (UbiComp '22).

Monitoring Valence with Facial EMG Sensors using Machine Learning

Kiprijanovska, I.; Jakimovski, B.; Krstevski, P.; Stankoski, S.; Mavridou, I.; Nduka, C.; Gjoreski, H.; Gjoreski, M.In Adjunct Proceedings of the 2022 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2022 ACM International Symposium on Wearable Computers (UbiComp '22).

Validating the effects of immersion and spatial audio using novel continuous biometric sensor measures for Virtual Reality

Warp, R.; Zhu, M.; Kiprijanovska, I.; Wiesler, J.; Stafford, S.; Mavridou, I. 2022 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct), Singapore, Singapore, 2022, pp. 262-265, DOI: 10.1109/ISMAR-Adjunct57072.2022.00058.

Preliminary exploration of facial electromyographic indices of pain in people undergoing hand surgery

Panchevski, F.; Mavridou, I.; Gjoreski, H.; Gjoreski, M.; Kiprijanovska, I.; Stankoski, S.; Nduka, C.; Broulidakis, J. International Association for the Study of Pain (IASP) 2022 World Congress on Pain, 19-23 September 2022, Toronto, Canada.

Moved By Sound: How head-tracked spatial audio affects autonomic emotional state and immersion-driven auditory orienting response in VR Environments

Warp, R.; Zhu, M.; Kiprijanovska, I.; Wiesler, J.; Stafford, S.; Mavridou, I. 152nd Audio Engineering Society Convention, 7-8 May 2022, The Hague, Netherlands.

Multi-componential analysis of emotions using virtual reality using physiological signals

Somarathna, R., Bednarz, T., & Mohammadi, G. In Australasian Joint Conference on Artificial Intelligence, pp. 599-613. Cham: Springer International Publishing, 2022

An exploratory analysis of interactive VR-based framework for multi-componential analysis of emotion.

Somarathna, R., Bednarz, T., & Mohammadi, G. (2022, March). In 2022 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events (PerCom Workshops) (pp. 353-358). IEEE.

emteqPRO—Fully Integrated Biometric Sensing Array for Non-Invasive Biomedical Research in Virtual Reality

Gnacek, M.; Broulidakis, J.; Mavridou, I.; Fatoorechi, M.; Seiss, E.; Kostoulas, T.; Balaguer-Ballester, E.; Kiprijanovska, I.; Rosten, C.; Nduka, C..Frontiers Virtual Reality 3.

Breathing Rate Estimation from Head-Worn Photoplethysmography Sensor Data Using Machine Learning

Stankoski, S.; Kiprijanovska, I.; Mavridou, I.; Nduka, C.; Gjoreski, H.; Gjoreski, M.Sensors 2022, 22, 2079.

emteqPRO: Face-mounted Mask for Emotion Recognition and Affective Computing

Gjoreski, H.; Mavridou, I.; Fatoorechi, M.; Kiprijanovska. I.; Gjoreski, M.; Cox, G.; Nduka, C.In Adjunct Proceedings of the 2021 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2021 ACM International Symposium on Wearable Computers (UbiComp '21).

Heart rate detection from the supratrochlear vessels using a virtual reality headset integrated PPG sensor.

M., Garrido-Leal, D., Nieto Lopez, R., Mavridou, I., Seiss, E., Kostoulas, T., Balaguer-Ballester, E. and Nduka, C., 2020. In: 1st International Workshop on Multimodal Affect and Aesthetic Experience on ICMI 2020: 22nd ACM International Conference on Multimodal Interaction, 25-29 October 2020, Utrecht, the Netherlands1.

Evaluation of facial electromyographic pain responses in healthy participants.

Governo, R. Eden-Green, B. Dawes, T. Mavridou, I. Giles, J. Rosten, C. Rennie-Taylor, J. & Nduka, C. Published Online: 19 Oct 2020.

Introducing the EmteqVR Interface for Affect Detection in Virtual Reality.

Mavridou, I., Seiss, E., Kostoulas, T., Hamedi, M, Nduka, C. 8th International Conference on Affective Computing and Intelligent Interaction Workshops and Demos (ACIIW), 2019, pp. 83-84. DOI: 10.1109/ACIIW.2019.8925297 Tag: VR

Emerging Affect Detection Methodologies in VR and future directions.

Mavridou, I., Perry, M., Seiss, E., Kostoulas, T et al. In: VRIC 2019: 21st Virtual Reality International Conference (pp.35), 20-22 March 2019, Laval, France. ISBN 978-2-9566251-2-4. Tag: VR

A System Architecture for Emotion Detection in Virtual Reality

Mavriddou I., Seiss E., Kostoulous T., Balaguer-Ballester E., Nduka C. EuroVR 2018, London, United Kingdom Savoy Palace, 22th to 23th October 2018. Tag: VR

Using facial gestures to Drive Narrative in VR

Mavriddou I., Hamedi M., Fatoorechi M., Archer J., Cleal A., Balaguer-Ballester E., Seiss E., Nduka C. Proceedings of the 5th Symposium on Spatial User Interaction Tag: VR

Towards valence detection from EMG for Virtual Reality applications.

Mavridou, I., Seiss, E., Hamedi, M., Balaguer-Ballester, E. and Nduka, C. In: 12th International Conference on Disability, Virtual Reality and Associated Technologies (ICDVRAT 2018), 4 – 6 September 2018, Nottingham, UK. ISBN 978-0-7049-1548-0 Tag: VR

FACETEQ; A novel platform for measuring emotion in VR

Mavriddou I., Cleal A., McGhee J.T., Hamedi M., Fatoorechi M., Balaguer-Ballester E., Seiss E., Cox G., Nduka C. 19th ACM Virtual Reality International Conference – VRIC 17, 22-24 March 2017, Laval, France. Tag: VR

FACETEQ interface demo for emotion expression in VR

Mavriddou I., McGhee J.T., Hamedi M., Fatoorechi M., Cleal A.,Balaguer-Ballester E., Seiss E., Cox G., Nduka C. IEEE Virtual Reality 2017, 18-22 March 2017, Los Angeles, CA, USA Tag: VR

Realistic facial expression reconstruction or VR HMD users

Lou, J., Wang, Y., Nduka, C., Hamedi, M., Mavridou, I., Wang, F. Y., & Yu, H.. IEEE Transactions on Multimedia. DOI: 10.1109/TMM.2019.2933338 Tag: VR

Towards an effective arousal detection system for virtual reality.

Mavridou, I., Seiss, E., Kostoulas, T., Nduka, C., & Balaguer-Ballester, E. In Proceedings of the Workshop on Human-Habitat for Health. International

OCOsense Glasses for Facial Expressions Recognition and Contextual Affective Computing in Real World and Augmented Reality.

Mavridou, I.; Archer, J.; Gjoreski, H.; Cleal, A.; Broulidakis, J.; Fatoorechi, M.; Kiprijanovska, I.; Stankoski, S.; Gjoreski, M.; Nduka, C. In Adjunct Proceedings of the 2022 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2022 ACM International Symposium on Wearable Computers (UbiComp ’22).

Monitoring Valence with Facial EMG Sensors using Machine Learning.

Mavridou, I.; Gjoreski, H.; Kiprijanovska, I.; Stankoski, S.; Gjoreski, M.; Nduka, C.; Krstevski, P.; Jakimovski, B.

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