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Visual corridor analysis chart generation method and device and computer equipment

A technology for analyzing graphs and computers, applied in the field of graphics, can solve problems such as the inability to intuitively guarantee the height of surrounding buildings, the impact of urban planning and construction approvals, etc.

Pending Publication Date: 2021-09-10
AERIAL PHOTOGRAMMETRY & REMOTE SENSING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, if it is necessary to analyze the visual corridors in an area, traditional drawings can only ensure the connectivity of the visual corridors on the planned roads, but cannot visually guarantee the actual impact of the height of surrounding buildings on the visual corridors of key areas. On-site field measurement, which will lead to a certain impact on urban planning and construction approval

Method used

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  • Visual corridor analysis chart generation method and device and computer equipment
  • Visual corridor analysis chart generation method and device and computer equipment
  • Visual corridor analysis chart generation method and device and computer equipment

Examples

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Embodiment 1

[0051] refer to figure 1 , figure 1 A schematic flowchart of a method for generating a visual corridor analysis diagram provided by an embodiment of the present invention, including:

[0052] S110. Visualize the acquired oblique photographic model data of the area to be analyzed to obtain a three-dimensional model diagram of the area to be analyzed, wherein the three-dimensional model diagram includes at least one three-dimensional model.

[0053] Specifically, oblique photography (Oblique photography) technology is a high-tech developed in the field of international surveying and mapping in recent years. By carrying multiple sensors on the same flight platform, five different Capture images from different perspectives, and then obtain rich high-resolution texture data of building top surfaces and side views.

[0054] Therefore, in an implementation mode that can be realized by the embodiment of the present invention, the unmanned aerial vehicle equipped with the calculated an...

Embodiment approach

[0074] Exemplary, see Figure 4 , Figure 4 It shows a three-dimensional model diagram including adjusted visual observation lines provided by the embodiment of the present invention, including observation points and 8 adjusted visual observation lines. As shown in the figure, in this implementation mode, the embodiment of the present invention renders and displays the visual observation line that does not intersect with the 3D model and the ray segment before intersecting with the 3D model in the first rendering style, that is, as a solid line, The ray segment after intersecting with the 3D model is displayed in the second rendering style, that is, as a dotted line.

[0075] Therefore, adjusting the visual observation line according to the intersecting coordinates can effectively simulate the human line of sight, that is, determine the objects that can be observed by the naked eye, and then know the visual corridor status of the observation point in the area to be analyzed. ...

Embodiment 2

[0095] refer to Figure 5 , Figure 5 A schematic structural diagram of a device for generating a visual corridor analysis diagram provided by an embodiment of the present invention is shown, and the device 200 for generating a visual corridor analysis diagram includes:

[0096] A visualization module 210, configured to perform visualization processing on the acquired oblique photographic model data of the area to be analyzed, to obtain a three-dimensional model diagram of the area to be analyzed, wherein the three-dimensional model diagram contains at least one three-dimensional model;

[0097] A visual simulation module 220, configured to select an observation point in the three-dimensional model diagram, and generate at least one visual observation line centered on the observation point;

[0098] Intersection determination module 230, configured to determine the intersection of each visual observation line with all three-dimensional models;

[0099] The graph generation m...

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Abstract

The embodiment of the invention discloses a visual corridor analysis chart generation method and device and computer equipment, and the method comprises the steps: firstly carrying out the visualization processing of the obtained oblique photography model data of a to-be-analyzed region, and obtaining a three-dimensional model chart of the to-be-analyzed region; then selecting an observation point in the three-dimensional model diagram, and generating a visual observation line; determining the intersection condition of each visual observation line and all three-dimensional models in the three-dimensional model diagram; and finally, adjusting a visual observation line in the three-dimensional model diagram according to the intersection condition so as to obtain a visual corridor analysis diagram of the to-be-analyzed region. Therefore, the visual corridor graph of each observation point can be accurately obtained without field investigation, the labor cost is reduced, the visual shielding condition under the three-dimensional model graph is effectively analyzed, and compared with visual corridor analysis on a plane drawing, the method is more accurate and efficient.

Description

technical field [0001] The invention relates to the field of graphics, in particular to a method, device and computer equipment for generating a visual corridor analysis diagram. Background technique [0002] One of the most important standards for the approval of urban buildings in urban planning is to ensure that the urban visual corridor is unobstructed. [0003] Visual corridors are built in key areas, such as historical buildings, monuments, buildings, or facilities that are considered important after approval, and when building or setting up facilities inside or around the building, it must be ensured that the facilities and buildings in the key area are in spatial vision. At least one unobstructed passage is left to show the city's style, historical architectural style, and urban cultural environment. [0004] However, if it is necessary to analyze the visual corridors in an area, traditional drawings can only ensure the connectivity of the visual corridors on the pl...

Claims

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Application Information

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IPC IPC(8): G06T17/05G06T15/20
CPCG06T17/05G06T15/205
Inventor 郭博阳孙凡凯常禹张立本
Owner AERIAL PHOTOGRAMMETRY & REMOTE SENSING CO LTD
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