Live-action three-dimensional modeling method considering building density

A technology of building density and three-dimensional modeling, which is applied in 3D modeling, image data processing, instruments, etc., can solve the problems that cannot meet the requirements of real-scene 3D model construction, and achieve the effect of improving production efficiency and saving costs

Active Publication Date: 2019-08-30
CHONGQING SURVEY INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Aiming at the deficiencies in the prior art, the present invention provides a real-scene 3D modeling method that takes into account the density of buildings, and

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  • Live-action three-dimensional modeling method considering building density
  • Live-action three-dimensional modeling method considering building density
  • Live-action three-dimensional modeling method considering building density

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Embodiment Construction

[0026] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0027] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0028] Such as Figure 1 to Figure 4 As shown, a kind of real scene three-dimensional modeling method that the present embodiment provides considering building density comprises the following steps:

[0029] Step 1: According to the building density, the modeling range is divided into the whole area or large area with low density, built-up area or planned built-up area with high den...

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Abstract

The invention provides a live-action three-dimensional modeling method considering building density, which comprises the following steps of: firstly, according to the building density, dividing a modeling range into a low-density global region or a large-range region, a high-density city built-up region or a planned built-up region and a special and required local key region; then respectively acquiring aerial photography images of the low-density region, the high-density region and the local key region, and making the aerial photography images into real-scene three-dimensional models with different fine scales; and finally, carrying out multi-source and multi-scale fusion on each three-dimensional model, and storing the fused three-dimensional models in the same three-dimensional model database. The live-action three-dimensional models of different sources under different building density requirements are subjected to integrated library building, multi-source multi-scale live-action three-dimensional model fusion management is achieved, the advantages of different levels of data can be brought into full play, and convenience is provided for achievement browsing, application and popularization.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping and geographic information systems, in particular to a real-scene three-dimensional modeling method in consideration of building density. Background technique [0002] The oblique aerial photography technology was introduced into China for the first time in 2010, and its appearance has brought new opportunities for the construction of 3D models of cities. Oblique photography technology collects ground images from multiple angles through multiple sensors, breaks through the limitations of traditional aerial images taken from vertical angles, obtains rich data information quickly and efficiently, truly reflects the objective situation on the ground, and satisfies people's understanding of real 3D information. demand. The obtained 3D data is a real 3D model, which can truly reflect the appearance, position, height and other attributes of the ground and objects, making up for the shortc...

Claims

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Application Information

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IPC IPC(8): G06T17/00
CPCG06T17/00
Inventor 陈翰新周智勇张俊前陈良超胡开全马红欧阳辉
Owner CHONGQING SURVEY INST
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