Building modeling method and device and computer readable storage medium

Abstract

The invention discloses a building modeling method and device and a computer readable storage medium, and aims to reduce accumulative errors during splicing of aerial images of a building and enable a user to obtain a better observation effect. The method comprises the following steps: acquiring an aerial image of a target building; extracting a texture image of the target building and an initial value of a bottom inflection point coordinate of the target building from the aerial image of the target building; according to the aerial image of the target building, generating a base map of a true digital orthoimage by combining a digital differential correction technology, and obtaining an approximate value of a bottom surface inflection point coordinate of the target building; associating the texture image of the target building with the base map of the true digital orthoimage according to the initial value and the approximate value of the coordinates of the inflection points of the bottom surface of the target building; respectively generating a texture image layer and a base image layer according to the scale of the image pyramid; and selecting a proportional scale corresponding to the pose of the user, and displaying the texture image layer and the base image layer, which are closest to the user and correspond to the selected proportional scale, of the camera.

Description

technical field [0001] The invention relates to the field of remote sensing image processing, in particular to a building modeling method, equipment and computer-readable storage medium. Background technique [0002] In the field of remote sensing image processing, the preparatory work before building modeling includes the acquisition of aerial images of target buildings. In view of the current popularity of drones, low-flying drones are usually used to capture aerial images of buildings. However, after the existing UAVs take aerial images of buildings, on the one hand, when stitching these aerial images, due to the existence of center projection errors, the cumulative error of stitching is relatively large; on the other hand, when displaying these aerial images When viewing aerial images of objects, the user's viewing angle is not considered, which results in the user not being able to obtain better observation results when observing. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

However, after the existing UAVs take aerial images of buildings, on the one hand, when stitching these aerial images, due to the existence of center projection errors, the cumulative error of stitching is relatively large; on the other hand, when displaying these aerial images When viewing aerial images of objects, the user's viewing angle is not considered, resulting in the user not being able to obtain better observation results when observing

Images