PROCESSING APPARATUS AND METHOD FOR DETERMINING AN AMBULATION MOTION OF A SUBJECT

PROCESSING APPARATUS AND METHOD FOR DETERMINING AN AMBULATION MOTION OF A SUBJECT

The present invention relates to a processing apparatus (10), system (1) and method (20) for determining an ambulation motion of a subject. Advantageously also a slow ambulation motion may be detected. The processing apparatus is configured to perform the steps of obtaining accelerometer data indica...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DERKX, Rene, Martinus, Maria, AARTS, Vincent, Alexander, Rudolf, BLOEMEMDAL, Brian, Brand, Antonius, Johannes
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
DIAGNOSIS
HANDLING RECORD CARRIERS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SURGERY
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Beschreibung
Zusammenfassung:The present invention relates to a processing apparatus (10), system (1) and method (20) for determining an ambulation motion of a subject. Advantageously also a slow ambulation motion may be detected. The processing apparatus is configured to perform the steps of obtaining accelerometer data indicative of a trunk motion of the subject; extracting one or more orthogonal motion components from high-pass filtered accelerometer data; determining a gravity component from low-pass filtered accelerometer data; comparing a direction of at least one of said orthogonal motion components with a direction of the gravity component; and classifying a motion of the subject as ambulation if said motion component is orthogonal or parallel to said gravity component.