| 摘要 |
PURPOSE: To allow the user to easily recognize which part of an entire image is observed when a video image of a camera is observed by providing an entire image display means displaying an entire area picked up by the camera on a display screen, a camera position detection means detecting a position on the entire screen, a camera area display means displaying a mark to an area picked by the camera at present and an entire image update means to the display device. CONSTITUTION: A reception means of a entire image receives an entire image of an area picked up by a camera and displays it onto a display screen 10. A camera position detection section 109 detects a state of a camera 101 such as panning or zooming and estimates to which part of the entire image the image picked up by the camera at present corresponds based on the state of the camera. A camera area display means sets a mark to a position on the entire image detected by a camera position detection section 109. An entire image update means updates an entire image possibly changed secularly in a prescribed timing. |
