JP2003331259A5 - - Google Patents

Claims (3)

A first image directly below the flying object is acquired by a line sensor in which imaging elements are arranged in a direction orthogonal to the flying direction of the flying object,
Calculating and specifying an occlusion area in the main scanning direction in the first image and a corresponding area in the occlusion generation side wrap image from the surface model corresponding to the imaging area of the first image;
An orthophoto image generation method of overwriting occlusion area pixels on the first image subjected to orthographic projection conversion with corresponding area pixels specified on the side wrap image. An occlusion automatic that calculates an occlusion area in the first image directly below the flying object obtained from the surface model by a line sensor in which imaging elements are arranged in a direction orthogonal to the flying direction of the flying object and designates the area in the first image Detection means;
Intermediate ortho-transform means for orthographic projection transformation of the first image;
Side wrap automatic search means for specifying an area specified in the occlusion automatic detection means in an occlusion occurrence side wrap image;
An orthophoto image generation system comprising: an image composition unit for overwriting a pixel in a side wrap image designated by the side wrap automatic retrieval unit with a pixel in an area designated by the occlusion automatic detection unit in the first image.   The orthophoto image generation system according to claim 2, further comprising a complement unit that outputs a filled image to the image composition unit when an occlusion region in the side wrap image is included in the region specified by the side wrap automatic search unit.