Aerial image three-dimensional modeling method and related product

A technology of 3D modeling and aerial imagery, applied in the field of images and aerial photography, can solve problems such as slow efficiency, poor stability, and difficulty in 3D data modeling

Active Publication Date: 2018-03-30
深圳万图科技有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of aerial photography, there are problems such as unstable attitude of the aircraft and large image distortion, which brings difficulties to the 3D modeling of data; in the process

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  • Aerial image three-dimensional modeling method and related product
  • Aerial image three-dimensional modeling method and related product
  • Aerial image three-dimensional modeling method and related product

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] The terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited ...

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Abstract

The invention provides an aerial image three-dimensional modeling method and a related product. The method comprises the following steps: obtaining an orthoimage and at least four slanted images, obtaining position information, and importing the position information to the orthoimage and the at least four slanted images; carrying out aerial triangulation on the orthoimage and the at least four slanted images to generate image exterior orientation elements, and recovering postures of the images during shooting; adopting a motion recovery structure for the primarily-treated orthoimage and the primarily-treated at least four slanted images to generate three-dimensional dense point cloud; serving curvature abrupt change points on a mesh of the three-dimensional dense point cloud as feature points, carrying out targeted grouped connection on an unordered feature point set and extracting a characteristic line of the initial position; and carrying out triangle folding simplification and feature preservation processing on the characteristic line of the initial position and outputting and obtaining a three-dimensional model. The technical scheme has the advantages of improving modeling efficiency and stability.

Description

technical field [0001] The invention relates to the technical field of images and aerial photography, in particular to a three-dimensional modeling method for aerial images and related products. Background technique [0002] Computer vision is a relatively young and rapidly developing field. Its research goal is to enable computers to have the ability to recognize three-dimensional environmental information through two-dimensional images. This ability will not only enable machines to perceive geometric information of objects in three-dimensional environments, including Its shape, position, posture, movement, etc., and can describe, store, recognize and understand them. [0003] With the demand for 3D models in digital cities, smart cities, urban planning and management, engineering design, 3D navigation, and tourism development, the rapid establishment of 3D models with real textures has increasingly highlighted high economic value and application prospects. In the process ...

Claims

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Application Information

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IPC IPC(8): G06T17/20G06T7/80G06T7/73G06T7/30
CPCG06T17/20G06T7/30G06T7/73G06T7/85
Inventor 李安岭
Owner 深圳万图科技有限公司
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