| 摘要 |
An image forming process for easily making an image drawing (ortho-image) in an actual place while confirming it in real time. Measuring of control points (at least three points) is performed (S 110 ), and preparation is made for forming an ortho-image based on image data thereof and survey data. Where photographing is carried out from a plurality of directions, additional image measuring is performed (S 140 ). Then, ortho-image formation is performed on a PC (S 160 ). Here, if a formed ortho-image is not what is desired, ortho-image correction is performed (S 180 ). After a satisfactory image is obtained (S 200 ), the process moves to a next area to be measured, and the same operation is repeated. On the other hand, unless a satisfactory image is obtained, additional image measuring (S 140 ) is performed again.
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