| 摘要 |
A computing device (100, 200) comprising a display (120) and a controller (210), wherein said controller (210) is configured to detect and track an object (H) via a video stream (265) provided by a camera (160, 260), and indicate an operating area on the display (120) which is currently open for manipulation by the tracked object (H) by changing displaying properties, of a marker area (170) on the display (120). Wherein the controller detects that a tracked object is moved in a direction substantially perpendicular to the plane of the display and in response thereto adapt the marker area and/or the extension of the marker area. |
