PURPOSE: A proximity range movement tracking system and a method are provided to accurately grasp user intention and to adjust a movement difference between different users and to determine a situation capable of applying movement. CONSTITUTION: A depth sensor(110) obtains an proximity range depth image for a part of body. A tracking module(135) identifies a part of body from data of the proximity range depth image. The tracking module tracks movement of a part of body from the data of the proximity range depth image. An output module(145) allows interaction between the movement of a part of body and a user interface(UI) element. A display(155) displays expression for a part of body and the UI element. The tracking module executes a background segment algorithm, a feature detection algorithm and an object identifying algorithm. [Reference numerals] (110) Depth image sensor; (115) Depth camera; (120) Depth processor; (135) Proximity range depth image tracking module; (140) Gesture recognition module; (145) Output module; (150) User device/application; (155) Display
SYSTEM AND METHOD FOR CLOSE-RANGE MOVEMENT TRACKING