MOBILE DEVICE AND METHOD FOR CLASSIFYING USER'S ACTION AND METHOD FOR CREATING HIERARCHICAL TREE MODEL

摘要

The present invention relates to a mobile device and a method for classifying moving actions of a user and a method for creating a hierarchical tree model for the same. The mobile device comprises: an acceleration sensor; a buffer for collecting acceleration data outputted from the acceleration sensor according to a specific action of a user; an extraction unit for extracting a characteristic element about the specific action of the user based on the acceleration data collected in the buffer; and an action determination unit for classifying the specific action of the user into a certain action by inputting the characteristic element extracted by the extraction unit to a previously configured hierarchical tree model. The hierarchical tree model was constructed in advance based on an extracted characteristic element from each action. The characteristic element of each action is extracted based on a first frame group which is configured by dividing the selected acceleration data for each action by a predetermined time unit and a second frame group in which part of the acceleration data is constructed to overlap with the first frame group by separating the collected acceleration data for each action by a different time unit from the predetermined time unit.