Aerial photograph image pickup method and aerial photograph image pickup apparatus

摘要

An aerial photographing image pickup method comprises a step of making a flying object fly meanderingly, a step of taking the image at each vertex where a direction is changed in the meandering flight, a step of extracting feature points from a common overlay portion of the images taken from at least three adjacent vertices, a step of determining two images of two vertices in the images as one set and acquiring positional information of the two vertices by a GPS device for each set regarding at least two sets, a step of performing photogrammetry of the measuring points corresponding to the feature points based on positional information and based on the feature points of the two images and a step of determining the feature points when the surveying results of the measuring points coincide with each other in at least the two sets as tie points for image combination.

主权项

1. An aerial photograph image pickup method comprising:
making a flying object fly meanderingly, wherein said flying object comprises a GPS device and an image pickup device for taking an image downward, taking the image at each vertex where a direction is changed in the meandering flight, acquiring a three-dimensional coordinate of each vertex by said GPS device, extracting feature points from a common overlap portion of three images taken from at least three vertexes adjacent to each other, performing triplet matching with respect to said three images based on said three-dimensional coordinates and said feature points, performing photogrammetry of measuring points corresponding to said feature points based on said three-dimensional coordinates acquired at two vertexes by said GPS device by determining two images of two vertexes in said images as one set for each set regarding at least two sets and based on said feature points of said two images, and determining said feature points when the surveying results of said measuring points coincide with each other in at least said two sets as tie points for image combination.