Method for acquiring three-dimensional topographic data of mountain wound surface

A 3D terrain and wound surface technology, applied in image data processing, details involving processing steps, 3D modeling, etc., can solve the problems of low integrity and accuracy of 3D terrain data, improve integrity and accuracy, avoid The effect of being occluded and ensuring the overlap rate

Active Publication Date: 2018-09-14
天津市测绘院有限公司
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a method for acquiring three-dimensional topographic data of mountain wounds to solve the technical problem of low completeness and accuracy in obtaining three-dimensional topographic data of mountain wounds in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for acquiring three-dimensional topographic data of mountain wound surface
  • Method for acquiring three-dimensional topographic data of mountain wound surface
  • Method for acquiring three-dimensional topographic data of mountain wound surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] figure 1 It is a flow chart of the method for obtaining 3D topographic data of mountain wounds provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of obtaining 3D topographic data of mountain wounds, especially for the case of obtaining 3D topographic data of steep mountain wounds.

[0045] see figure 1 , the method for acquiring three-dimensional terrain data of mountain wounds, comprising:

[0046] S110, acquiring the surrounding environment image data of the mountain wound, and determining the flight range and flight height according to the surrounding environment image data.

[0047] The surrounding environment image data is obtained by means of vertical photography of drones. The scope of the survey area is determined according to the position and range of the mine wound in the surrounding environment image. At the same time, the minimum and maximum heights of the survey area and the performance of image acquisition equip...

Embodiment 2

[0089] figure 2 It is a schematic flowchart of the method for acquiring three-dimensional terrain data of mountain wounds provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments. In this embodiment, the method further includes: setting an image total station measuring site, using the image total station to measure the three-dimensional coordinate information of the image control point, and recording The digital image of the image control point; correspondingly, after the image is collected according to the shooting site, the starting shooting angle, the ending shooting angle and the angle difference of each shooting, the collected image is processed according to the principle of close-range photogrammetry Before processing, before generating the three-dimensional terrain data of the mountain wound surface, it also includes: coordinate registration of the collected images according to the digital image of the im...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for acquiring three-dimensional topographic data of a mountain wound surface. The method comprises the following steps: acquiring mountain wound surface data, confirming a flying range and a flying height, confirming a photographing distance, confirming the maximum distance between adjacent photographing sites, confirming a height difference of adjacent hovering points, and confirming a start photographing angel and an end photographing angel of a photographing site and angle differences of each time of photographing; acquiring images; according to close-rangephotogrammetry principles, processing the acquired images, and generating three-dimensional topographic data of the mountain wound surface. By adopting the method, the overlap rate of images can be effectively ensured, and in addition, the consequence that the mountain wound surface is shielded can be effectively avoided. By setting a rotation angle of each hovering site, images that a mountain wound surface has concave can be photographed. The completeness and the accuracy of three-dimensional topographic data of the mountain wound surface can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of terrain measurement, in particular to a method for acquiring three-dimensional terrain data of mountain wounds. Background technique [0002] Mountain wounds usually have the characteristics of steep airsides, especially in artificially mined mining areas, which are prone to landslides and geological hazards. Due to the small scale of the wounds, they usually have a slope of 70-90 degrees and an elevation change of more than 30 meters. , there are many dangerous stone forests on the surface of the sky. At present, in order to obtain three-dimensional topographic data of mine wounds, UAV five-lens oblique photography method and laser detection and measurement technology (Light Detection And Ranging, Lidar) can be used. [0003] When using the UAV five-lens oblique photography method, due to the steep mountainous terrain, in order to ensure flight safety, it is usually necessary to fly at a relative height...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06T17/05
CPCG06T17/05G06T2200/08
Inventor 盛中杰刘俊卫周奎陈楚吴正鹏王永峰方芳王琳李晓明杨魁
Owner 天津市测绘院有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap