Cited by 161Context-Aware Activity Recognition SystemsPhysical Activity and HealthHuman Pose and Action Recognition

Dealing with sensor displacement in motion-based onbody activity recognition systems

Kunze, Kai, Lukowicz, Paul·2008·Proceedings of the 10th international conference on Ubiquitous computing

Abstract

We present a set of heuristics that significantly increase the robustness of motion sensor-based activity recognition with respect to sensor displacement. In this paper placement refers to the position within a single body part (e.g, lower arm). We show how, within certain limits and with modest quality degradation, motion sensorbased activity recognition can be implemented in a displacement tolerant way. We first describe the physical principles that lead to our heuristic. We then evaluate them first on a set of synthetic lower arm motions which are well suited to illustrate the strengths and limits of our approach, then on an extended modes of locomotion problem (sensors on the upper leg) and finally on a set of exercises performed on various gym machines (sensors placed on the lower arm). In this example our heuristic raises the displaced recognition rate from 24% for a displaced accelerometer, which had 96% recognition when not displaced, to 82%.

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Crossref · 10.1145/1409635.1409639

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  • The design and functionality of ACC sensors may lead to sensor noise and other inconsistencies like sensor saturation or displacement.

    “The design and functionality of ACC sensors may lead to sensor noise and other inconsistencies like sensor saturation or displacement63–65.”

    From Data quality evaluation in wearable monitoring (2022) · cites this paper as [65]

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Authors
Kunze, K., & Lukowicz, P.
Affiliations
University of Passau (DE)
Venue
Proceedings of the 10th international conference on Ubiquitous computing
Publisher
ACM
Published
2008-09-21
Pages
20-29
OpenAlex
W2137846113
Cited by
161
References
20
Citations by year
2025: 2 · 2024: 2 · 2023: 12 · 2022: 7 · 2021: 8 · 2020: 5 · 2019: 2 · 2018: 13 · 2017: 6 · 2016: 7 · 2015: 16 · 2014: 16 · 2013: 12 · 2012: 14
FWCI
10.41
Type
conference paper
Language
en
Open access
closed
Locations
ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp) (publishedVersion)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Human Pose and Action Recognition
Keywords
sensor displacement, motion sensors, accelerometer, sensor placement, lower arm, upper leg, locomotion modes, gym exercise, recognition robustness

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