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Method for reconstructing three-dimensional building model from single image

A technology for building models and reconstructing 3D, which is used in 3D modeling, image data processing, instruments, etc.

Active Publication Date: 2015-01-14
BEIJING TIANREN TONGDA SOFTWARE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Jiang[39] proposed a method to generate a symmetric model using a single image, such as image 3 As shown, the image is calibrated based on the prism, but the building structure needs to be drawn interactively by the user

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  • Method for reconstructing three-dimensional building model from single image
  • Method for reconstructing three-dimensional building model from single image
  • Method for reconstructing three-dimensional building model from single image

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Embodiment Construction

[0024] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] The technical solution adopted by the present invention to solve the technical problems existing in the prior art is: a method for reconstructing a three-dimensional building model from a single image, and the specific implementation steps of the method are as follows:

[0026] Step (1) After dividing the building into a grid structure and calculating the focal length of the camera, the three-dimensional surface of the building facade is initially restored by correcting the plane.

[0027] According to the orthogonality of the horizontal and vertical directions, the focal length of the camera is calculated.

[0028] f = ( 1 3 v ...

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Abstract

The invention provides a method for reconstructing a flexible, semantic and changeable three-dimensional building model from a single image. Building floors are partitioned into grid structures through usage of the single image, simple interaction of users and camera parameter calibration, the three-dimensional fade curved surface of the building is flattened, an initial three-dimensional size is recovered through a correcting plane, the three-dimensional curved surface and the camera parameter are optimized through a Levenberg-Marquardt method and based on the symmetry of the three-dimensional fade curved surface, and finally the three-dimensional building model is generated through a process-based method.

Description

technical field [0001] The invention belongs to the technical field of computer virtual reality and image-based modeling, in particular to the fields of identifying image calibration and segmentation, generating building components, and generating three-dimensional building models, and particularly relates to a method for generating building models from a single image. Background technique [0002] Modeling based on a single image cannot obtain 3D points through the triangulation method, so restoring a 3D model from a single image is an ill-conditioned problem that requires additional information to be solved. To this end, researchers reconstructed 3D models using constraints such as symmetry [1], parallel and perpendicular relations [2], and parallelepipeds [3]. Muller [4] builds a facade model of a modern building from a single image based on a procedural modeling approach. Using a single image as a constraint, Xu [5] used a data-driven method to deform the candidate mode...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/30
Inventor 齐越侯飞
Owner BEIJING TIANREN TONGDA SOFTWARE TECH