Aerial photo imaging method and aerial photo imaging system

摘要

PROBLEM TO BE SOLVED: To provide an aerial photographing method and an aerial photographing system capable of easily creating a high-precision 3D model image.SOLUTION: An aerial photographing method comprises the processes to: take a wide area image including a measurement range while a flight vehicle provided with an imaging device 13 flies at a high altitude and to acquire a three-dimensional position when the wide area image is taken; set the measurement range on the basis of the wide area image; take fine images at predetermined intervals while the flight vehicle flies at a low altitude; acquire positions when the fine images are taken; match magnification ratios of the wide area image and the fine images; perform wide-area-image/fine-image matching of the wide area image and the fine images with the magnification ratios thereof matched on the basis of the position when the wide area image is taken and the positions when the fine images are taken; and create a measurement range fine 3D model covering an entire range of the measurement range by performing fine-image/fine-image matching of the fine images next to each other on the basis of relative relation information obtained from the wide-area-image/fine-image matching.