HCII · 2026 · Vol. 16719 · pp. 90–109

Real-Time Cellist Postural Evaluation With On-Device Computer Vision

Abstract

Posture is a critical factor for beginning instrumental learners. Most students receive instruction only once a week, and during the intervals between lessons they have little or no feedback on their physical posture. As a result, posture often deteriorates, increasing the risk of musculoskeletal injury and inefficient technique. Recent advances in computer vision and machine learning make it possible to evaluate posture without the constant presence of a human expert. However, current solutions have been extremely limited in availability and convenience due to their reliance on computationally expensive hardware or multi-sensor setups. We present Cello Evaluator, a real-time postural feedback system for practicing cellists. Through this optimization for on-device computer vision inference, we provide access to cellist postural evaluation to anyone with a current generation Android phone and thus reduces the postural feedback voids within individual practice. To validate our mobile application, we conduct a heuristic evaluation consisting of cellist and UX experts. Overall feedback from the evaluation found the app to be user friendly and helpful.

Authors

Venue

Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management (HCII 2026), Vol. 16719, pp. 90–109 · 2026

Cite this paper

Paolo Wang, Michael Zhang, Shrinand Perumal, Ekaterina Tszyao, Luke Choi, Kexin Sha, Felix Lu, Paige Lorenz, Jackson P. Shields, Sivamurugan Velmurugan, Joshua Kamphuis, William P. Jiang, Gurtej Bagga, Trevor Ju, Raymond Otis Kwon, Kristen Yeon-Ji Yun, Yung-Hsiang Lu (2026). Real-Time Cellist Postural Evaluation With On-Device Computer Vision. Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management (HCII 2026), 16719, 90–109. https://doi.org/10.1007/978-3-032-29839-3_6

▸BibTeX

BibTeX

@inproceedings{Wang2026CelloEvaluator,
  author    = {Wang, Paolo and Zhang, Michael and Perumal, Shrinand and Tszyao, Ekaterina and Choi, Luke and Sha, Kexin and Lu, Felix and Lorenz, Paige and Shields, Jackson P. and Velmurugan, Sivamurugan and Kamphuis, Joshua and Jiang, William P. and Bagga, Gurtej and Ju, Trevor and Kwon, Raymond Otis and Yun, Kristen Yeon-Ji and Lu, Yung-Hsiang},
  title     = {Real-Time Cellist Postural Evaluation With On-Device Computer Vision},
  booktitle = {Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management (HCII 2026)},
  year      = {2026},
  series    = {Lecture Notes in Computer Science},
  volume    = {16719},
  pages     = {90--109},
  publisher = {Springer},
  doi       = {10.1007/978-3-032-29839-3_6},
  url       = {https://arxiv.org/abs/2604.17530}
}

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