Integral aerial triangulation method for airborne laser scanning point cloud and optical image

An airborne laser scanning and optical imaging technology, applied in the field of remote sensing images, can solve the problems of systematic offset of registration results, loose models, incomplete adjustment models, etc.

Inactive Publication Date: 2013-07-10
WUHAN UNIV
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only the error between the point cloud and the image itself is considered, but the error between the two is not considered, resulting in an incomplete adjustment model and low processing accuracy
[0016] Secondly, the external registration only starts from the phenomenon of spatial misalignment between data, and fails to grasp the root cause of the misalignment
Some kind of data is artificiall...

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
  • Integral aerial triangulation method for airborne laser scanning point cloud and optical image
  • Integral aerial triangulation method for airborne laser scanning point cloud and optical image
  • Integral aerial triangulation method for airborne laser scanning point cloud and optical image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0055] In order to facilitate understanding of the technical solution of the present invention, the following parts are described in the following sections:

[0056] (1) Observation model based on LiDAR object space point

[0057] According to the principle of laser positioning, the relationship between the coordinates of the laser foot point and the system error can be expressed as formula (1). Where (X,Y,Z) is the coordinates of the laser foot point (that is, the coordinates of the object space point), (X SI ,Y SI ,Z SI ) is the scanning center coordinates at the moment of laser pulse emission, R lid is the attitude matrix at the time of laser pulse emission, R scan is the laser scanning angle rotation matrix, θ is the scanning angle, and ρ is the laser pulse ranging value.

[0058] X ...

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 provides an integral aerial triangulation method for an airborne laser scanning point cloud and an optical image. An integral aerial triangulation strict balancing model for connecting the point cloud and the image is built according to a related relation between the point cloud and a system error of the image; and the integral compensation is carried out on the system error, so that the positioning precision of the point cloud and the image can be improved, and the registering of the point cloud and the image is realized. A relation process of the technical scheme disclosed by the invention is simple; the automatic operation is supported; the accuracy of a result is high; and the key problem of an integrated system of an airborne LiDAR (Light Detection And Ranging,) and an aviation camera is solved.

Description

technical field [0001] The invention relates to the technical field of remote sensing images, in particular to an integrated aerial three-dimensional method for airborne laser scanning point clouds and optical images. Background technique [0002] Airborne LiDAR (Light Detection and Ranging) and aerial camera integrated system is a high-tech that has developed rapidly in the field of remote sensing in recent years. , realized the synchronous acquisition of high-precision surface geometric information and multispectral images, and improved the efficiency of remote sensing data acquisition and post-processing. The integrated processing of point cloud and image data can give full play to the advantages of both, and has great application potential. Due to the influence of various systematic errors, there is inevitably a systematic deviation in the positioning of the original point cloud and the image, and the two data cannot be directly aligned, which has an important impact on...

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): G01C11/34
Inventor 张靖江万寿王盛
Owner WUHAN UNIV
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