Check patentability & draft patents in minutes with Patsnap Eureka AI!

Oblique photogrammetry building feature point extraction method and device, electronic equipment and medium

A technology of oblique photogrammetry and feature point extraction, which is applied in the field of surveying and mapping, can solve the problem of reducing the accuracy of feature extraction of buildings, and achieve the effect of improving accuracy

Active Publication Date: 2022-03-01
肇庆市城市规划设计院
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the constraints of the TIN itself, it has a good fitting effect on the surface, but it is difficult to accurately fit the linear targets and prominent corners with non-smooth outlines of buildings, which reduces the accuracy of feature extraction of buildings.

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
  • Oblique photogrammetry building feature point extraction method and device, electronic equipment and medium
  • Oblique photogrammetry building feature point extraction method and device, electronic equipment and medium
  • Oblique photogrammetry building feature point extraction method and device, electronic equipment and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] The following is attached Figure 1-3 The application is described in further detail.

[0062] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0063] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, The...

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 relates to the field of surveying and mapping, in particular to an oblique photogrammetry building feature point extraction method and device, electronic equipment and a medium. The oblique photogrammetry building feature point extraction method comprises the following steps: acquiring a three-dimensional model generated by a target building based on oblique photogrammetry; determining a to-be-filled area in the three-dimensional model; determining feature points in the to-be-filled area based on a Bayesian network classifier; and fusing the feature points of the to-be-filled area to a position corresponding to the three-dimensional model. According to the invention, the accuracy of building extraction is improved.

Description

technical field [0001] The present application relates to the field of surveying and mapping, in particular to a method, device, electronic equipment and medium for extracting feature points of oblique photogrammetry buildings. Background technique [0002] In recent years, with the rapid development of UAV technology and oblique photography technology, the use of UAVs equipped with multi-lens sensors for oblique photography and rapid generation of real 3D models of cities has become an important means of obtaining 3D geographic information data. Relevant personnel continuously improve the performance of the airborne camera, optimize the flight route of the drone, obtain more detailed ground object information, and generate a more refined 3D model of the building. [0003] However, due to the constraints of the TIN itself, it has a good fitting effect on the surface, but it is difficult to accurately fit the linear targets and prominent corners with non-smooth outlines of bu...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06V20/17G06V10/22G06V10/46G06V10/764G06V10/80G06V10/82G06K9/62G06T17/10G06T17/20G06N3/04G06N3/08
CPCG06T17/10G06N3/04G06N3/08G06N3/047G06F18/24155G06F18/241G06F18/2415G06F18/253
Inventor 李健斌吴文海陈国锋
Owner 肇庆市城市规划设计院
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com