title: Comparison of calibration methods for accelerometers used in human motion analysis.
abstract: In the fields of medicine and biomechanics, MEMS accelerometers are increasingly used to perform activity recognition by directly measuring acceleration; to calculate speed and position by numerical integration of the signal; or to estimate the orientation of body parts in combination with gyroscopes. For some of these applications, a highly accurate estimation of the acceleration is required. Many authors suggest improving result accuracy by updating sensor calibration parameters. Yet navigating the vast array of published calibration methods can be confusing. In this context, this paper reviews and evaluates the main measurement models and calibration methods. It also gives useful recommendations for better selection of a calibration process with regard to a specific application, which boils down to a compromise between accuracy, required installation, algorithm complexity, and time.
authors: PPrime Institute, CNRS - University of Poitiers - ENSMA, UPR 3346, Robotics, Biomechanics, Sport and Health, Futuroscope, France. Electronic address: alexis.nez@univ-poitiers.fr.
authors: Alexis
authors: A
authors: Nez
authors: PPrime Institute, CNRS - University of Poitiers - ENSMA, UPR 3346, Robotics, Biomechanics, Sport and Health, Futuroscope, France. Electronic address: laetitia.fradet@univ-poitiers.fr.
authors: Laetitia
authors: L
authors: Fradet
authors: PPrime Institute, CNRS - University of Poitiers - ENSMA, UPR 3346, Robotics, Biomechanics, Sport and Health, Futuroscope, France. Electronic address: pierre.laguillaumie@univ-poitiers.fr.
authors: Pierre
authors: P
authors: Laguillaumie
authors: PPrime Institute, CNRS - University of Poitiers - ENSMA, UPR 3346, Robotics, Biomechanics, Sport and Health, Futuroscope, France. Electronic address: tony.monnet@univ-poitiers.fr.
authors: Tony
authors: T
authors: Monnet
authors: PPrime Institute, CNRS - University of Poitiers - ENSMA, UPR 3346, Robotics, Biomechanics, Sport and Health, Futuroscope, France. Electronic address: patrick.lacouture@univ-poitiers.fr.
authors: Patrick
authors: P
authors: Lacouture
mesh_terms: D000054:Acceleration; D061725:Accelerometry / Q000295:instrumentation*; D002138:Calibration; D006801:Humans; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation; D009068:Movement
keywords: Accelerometer; Calibration; Human motion analysis; Measurement model; Microelectromechanical system (MEMS)