Orthoimage creation method, ground model creation method, orthoimage creation system, and ground model creation system

A ground model creation system comprising:

• an orthoimage creation means that creates an orthoimage of a predetermined region based on three-dimensional coordinates of a plurality of feature points and a plurality of captured images taken by a photographing device such that each of the plurality of feature points is included in at least two captured images;
• a point group data storage means for storing point group data converted into three-dimensional coordinates obtained for each point in the predetermined region by a laser beam irradiated from a three-dimensional scanning device;
• a ground model creation means for creating a ground model of the predetermined region by supplementing the point group data stored in the point group data storage means with color information of the ortho-image.

A ground model characterized in that the ground model is point group data in which each point in a predetermined region is converted into three-dimensional coordinates obtained by laser light irradiated from a three-dimensional scanning device, and each point included in the point ground data is supplemented with color information of an orthoimage for the predetermined region.

A ground model characterized in that the ground model is point group data in which each point in a predetermined region is converted into three-dimensional coordinates obtained by laser light irradiated from a three-dimensional scanning device, and each point included in the point ground data is supplemented with color information of an orthoimage for the predetermined region created based on three-dimensional coordinates of a plurality of feature points for each point included in the point cloud data and a plurality of images captured by an imaging device so that each of the plurality of feature points is included in at least two images.