Real scene three-dimensional modeling method for urban building

A 3D modeling and architectural technology, applied in the field of 3D modeling, can solve problems such as insufficient presentation and lack of high-level information, and achieve the effect of low cost, small workload and high precision

Inactive Publication Date: 2017-01-11
成都慧途科技有限公司
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Its near-surface data is complete and the details are clear, but its ove

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  • Real scene three-dimensional modeling method for urban building
  • Real scene three-dimensional modeling method for urban building
  • Real scene three-dimensional modeling method for urban building

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Embodiment 1

[0031] figure 1 It shows a schematic workflow diagram of the real scene three-dimensional modeling method for urban buildings provided by the present invention, figure 2 It shows a schematic diagram of multi-view aerial photography of the target area provided by the present invention, image 3 It shows a comparative schematic diagram of the principles of central projection and oblique projection provided by the present invention, Figure 4 A schematic diagram showing the selection of oblique images provided by the present invention, Figure 5 A schematic diagram of the definition of the collinear conditional equation provided by the present invention is shown. The real-scene three-dimensional modeling method for urban buildings provided in this embodiment includes the following steps.

[0032] S101. Obtaining modeling data: On the one hand, the aerial oblique photography system is used to obtain multi-angle oblique aerial images of the area to be modeled and the airborne P...

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Abstract

The invention relates to the technical field of three-dimensional modeling, and discloses a real scene three-dimensional modeling method for an urban building. Aviation oblique photographic measurement and ground vehicle-mounted mobile measurement are organically combined to perform air-ground integrated extraction and processing of omni-directional spatial information so that an urban building real scene three-dimensional model can be rapidly established, the ground defect of aviation oblique photographic measurement can be compensated to the greatest extent, and the ground advantage of vehicle-mounted mobile measurement can be fully exerted.

Description

technical field [0001] The invention relates to the technical field of three-dimensional modeling, in particular to a method for real scene three-dimensional modeling of urban buildings. Background technique [0002] With the demand for true 3D models of cities in "digital cities", "smart cities", urban planning and management, architectural landscape design, 3D navigation, and tourism development, it is increasingly important to quickly establish realistic 3D urban landscapes with real textures. High economic value and application prospect. At present, the most important models in the digital city 3D landscape model include terrain and building 3D models, and the establishment of building 3D models is a basic content of "digital city" construction. The two most important steps in building 3D modeling are building geometric model (white model) and adding texture information to buildings. [0003] According to different technical means and forms of expression, the three-dim...

Claims

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Application Information

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IPC IPC(8): G06T17/00
CPCG06T17/00
Inventor 沈雪娇翁晓鹏杜艳秀章明何小军
Owner 成都慧途科技有限公司
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