| 摘要 |
PURPOSE: To prevent an error in the shape judgement parts by forming a reference image on the assumption that a noise exists. CONSTITUTION: An initial reference picture IP is formed by performing image processing to a photographed original image while using an image processor, a mask area MA is set by covering a noise image area NA existent on the initial reference picture IP, and a reference picture MP is formed by setting the picture elements inside the mask area MA at the same value as picture elements in a background image ra. |
