Abstract
This paper tackles a challenging problem of inertial sensor-based recognition for similar gait action classes (such as walking on flat ground, up/down stairs, and up/down a slope). We solve three drawbacks of existing methods in the case of gait actions: the action signal segmentation, the sensor orientation inconsistency, and the recognition of similar action classes. First, to robustly segment the walking action under drastic changes in various factors such as speed, intensity, style, and sensor orientation of different participants, we rely on the likelihood of heel strike computed employing a scale-space technique. Second, to solve the problem of 3D sensor orientation inconsistency when matching the signals captured at different sensor orientations, we correct the sensor's tilt before applying an orientation-compensative matching algorithm to solve the remaining angle. Third, to accurately classify similar actions, we incorporate the interclass relationship in the feature vector for recognition. In experiments, the proposed algorithms were positively validated with 460 participants (the largest number in the research field), and five similar gait action classes (namely walking on flat ground, up/down stairs, and up/down a slope) captured by three inertial sensors at different positions (center, left, and right) and orientations on the participant's waist.
| Original language | English |
|---|---|
| Pages (from-to) | 1289-1301 |
| Number of pages | 13 |
| Journal | Pattern Recognition |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 1 2015 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Software
- Signal Processing
- Computer Vision and Pattern Recognition
- Artificial Intelligence
Cite this
Similar gait action recognition using an inertial sensor. / Ngo, Trung Thanh; Makihara, Yasushi; Nagahara, Hajime; Mukaigawa, Yasuhiro; Yagi, Yasushi.
In: Pattern Recognition, Vol. 48, No. 4, 01.04.2015, p. 1289-1301.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Similar gait action recognition using an inertial sensor
AU - Ngo, Trung Thanh
AU - Makihara, Yasushi
AU - Nagahara, Hajime
AU - Mukaigawa, Yasuhiro
AU - Yagi, Yasushi
PY - 2015/4/1
Y1 - 2015/4/1
N2 - This paper tackles a challenging problem of inertial sensor-based recognition for similar gait action classes (such as walking on flat ground, up/down stairs, and up/down a slope). We solve three drawbacks of existing methods in the case of gait actions: the action signal segmentation, the sensor orientation inconsistency, and the recognition of similar action classes. First, to robustly segment the walking action under drastic changes in various factors such as speed, intensity, style, and sensor orientation of different participants, we rely on the likelihood of heel strike computed employing a scale-space technique. Second, to solve the problem of 3D sensor orientation inconsistency when matching the signals captured at different sensor orientations, we correct the sensor's tilt before applying an orientation-compensative matching algorithm to solve the remaining angle. Third, to accurately classify similar actions, we incorporate the interclass relationship in the feature vector for recognition. In experiments, the proposed algorithms were positively validated with 460 participants (the largest number in the research field), and five similar gait action classes (namely walking on flat ground, up/down stairs, and up/down a slope) captured by three inertial sensors at different positions (center, left, and right) and orientations on the participant's waist.
AB - This paper tackles a challenging problem of inertial sensor-based recognition for similar gait action classes (such as walking on flat ground, up/down stairs, and up/down a slope). We solve three drawbacks of existing methods in the case of gait actions: the action signal segmentation, the sensor orientation inconsistency, and the recognition of similar action classes. First, to robustly segment the walking action under drastic changes in various factors such as speed, intensity, style, and sensor orientation of different participants, we rely on the likelihood of heel strike computed employing a scale-space technique. Second, to solve the problem of 3D sensor orientation inconsistency when matching the signals captured at different sensor orientations, we correct the sensor's tilt before applying an orientation-compensative matching algorithm to solve the remaining angle. Third, to accurately classify similar actions, we incorporate the interclass relationship in the feature vector for recognition. In experiments, the proposed algorithms were positively validated with 460 participants (the largest number in the research field), and five similar gait action classes (namely walking on flat ground, up/down stairs, and up/down a slope) captured by three inertial sensors at different positions (center, left, and right) and orientations on the participant's waist.
UR - http://www.scopus.com/inward/record.url?scp=84920669699&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84920669699&partnerID=8YFLogxK
U2 - 10.1016/j.patcog.2014.10.012
DO - 10.1016/j.patcog.2014.10.012
M3 - Article
AN - SCOPUS:84920669699
VL - 48
SP - 1289
EP - 1301
JO - Pattern Recognition
JF - Pattern Recognition
SN - 0031-3203
IS - 4
ER -