| 摘要 |
An aspect of the invention implements an object tracking apparatus (10) that can precisely track an object even if an analog of the object exists around the object. The object tracking apparatus (10) includes a state determining unit (31) that determines a tracking state from a positional relationship between the object and the analog having a feature similar to that of the object in an earlier frame of a current frame; an object searching unit (33) that specifies a position of the object in the current frame; and a surrounding searching unit (37) that specifies a position of the analog in the current frame when the analog exists in a surrounding region that is of a predetermined region around the object. The object predicting unit (41) predicts the position of the object in the current frame to specify the position of the object based on the position of the object and a motional state of the object in an earlier frame when the tracking state is "overlap", and the object searching unit (33) searches the object from an image of the current frame to specify the position of the object when the tracking state is not "overlap". |
