Title
A Device-Orientation Independent Method for Activity Recognition
Abstract
This paper describes an orientation-independent method for detecting activities of daily living based on reference coordinate transformation. With the proposed method, a classification model can be trained using data acquired during a specific sensor orientation and applied to other input signals regardless of the orientation of the device. The technique is validated using activity recognition experiments with four different orientations of a single tri-axial accelerometer placed on the waist of 13 subjects performing a sub-class of activities of daily living. A high subject-independent accuracy of 90.42% has been achieved, reflecting a significant improvement of 11.74% and 16.58%, compared with classification without input transformation and classification with orientation-specific models, respectively.
Year
DOI
Venue
2010
10.1109/BSN.2010.55
BSN
Keywords
Field
DocType
orientation-independent method,input transformation,classification model,orientation-specific model,high subject-independent accuracy,specific sensor orientation,activity recognition experiment,different orientation,device-orientation independent method,activity recognition,daily living,accuracy,acceleration,oxygen,activity of daily living,intelligent sensors,coordinate transformation,daily living activities,wearable computers,biomechanics,accelerometers,feature extraction
Coordinate system,Computer vision,Activity recognition,Computer science,Intelligent sensor,Accelerometer,Feature extraction,Artificial intelligence,Signal classification,Motion analysis,Context sensing
Conference
Citations 
PageRank 
References 
26
1.97
7
Authors
1
Name
Order
Citations
PageRank
Surapa Thiemjarus119215.64