| http://www.w3.org/ns/prov#value | - The display unit 110 displays a pointer on a display position on the screen 111 which is calculated by the pointer display position calculation unit 109.<Motion>The following will describe the function for each of the blocks in FIG. 2.<User Detection Camera>The user detection camera 100 is installed on the video display device 112 and includes an image sensor such as Charge Coupled Device (CCD).
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