| 摘要 |
PURPOSE: A method for recognizing coordinates from a coordinate pattern on a pattern sheet is provided to quickly and accurately recognize numbers corresponding to a coordinate value expressed by the coordinate pattern of an identification pattern from an image taken with a digital camera by using the coordinate pattern. CONSTITUTION: A digital image is obtained by photographing a coordinate pattern around an identification spot(S100). A line of the coordinate pattern on the image is vertically and horizontally arranged(S200). A direction of the image is checked and the image is placed forward(S300). A coordinate value indicated by the coordinate pattern around the identification spot is recognized(S400). The coordinate value indicating the center of the coordinate pattern is determined(S500). The coordinate value of the identification spot on the image is calculated(S600). [Reference numerals] (AA) Start; (BB) End; (S100) Obtaining coordinate pattern digital image; (S200) Vertically and horizontally arranging coordinate pattern; (S300) Placing image forward; (S400) Recognizing coordinate pattern in forwarding direction; (S500) Determining coordinate pattern center coordinate value; (S600) Calculating identification spot coordinate value
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