| 摘要 |
PROBLEM TO BE SOLVED: To display a subject of a complicated shape with a sharp image in real time by providing a display means for displaying a synthetic image and a partial display means for displaying the subject nearly at the present time in a displaying range smaller than the synthetic image. SOLUTION: A microscope 1 photographs a subject 2 by means of a video camera 7 at its height to obtain image data based on a real image. A computer 9 fully focuses within the area of the partial display part of a monitor 5 to make a stereoscopic synthetic image to synthesize this stereoscopic image and a stereoscopic image formed before. Then, at the time of displaying the synthetic image of the subject 2 on the partial display part of the monitor 5, the computer 9 is not required to full-focus the whole displaying area from the beginning but required to full-focus only the area of a narrow and small partial display part again. Thus, the number of the times of full focusing is reduced and the subject of a complicated shape can be displayed with a sharp image in real time.
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