METHOD FOR CORRECTING OF AERIAL PHOTOGRAPH IMAGE USING MULTI PHOTOGRAPH IMAGE

摘要

A method for correcting an aerial photograph image by using a plurality of photographed images are provided to easily detect natural features and unnatural infrastructures varying in real time and produce a map with high accuracy. An image of a ground region is photographed at a first photographing angle by using a first image acquisition unit at an arbitrary altitude(S101). An image is photographed at a second photographing angle by using a second image acquisition unit having a predetermined distance from the first image acquisition unit at the same altitude(S102). An image is photographed at a third photographing angle by using a third image acquisition unit having a predetermined distance from the first and second image acquisition units at the same altitude(S103). The three images are overlapped to match the center focuses of the images to calculate a partial error rate to correct distortion of images. A severely distorted portion of a photograph photographed at an arbitrary viewing angle is compensated based on a photograph photographed at another viewing angle. Information about a distance between an arbitrary feature on the ground and another feature is calculated by using triangulation(S203). A 2D or 3D image with high resolution and high position accuracy is acquired(S204).