Close-range photogrammetry color 3D scanning lidar

A color laser and three-dimensional scanning technology, applied in the field of surveying and mapping remote sensing, can solve the problems of lack of color information, insufficient data processing, etc., achieve the effect of reducing volume and weight, improving feasibility, and enhancing color resolution ability

Active Publication Date: 2016-08-31
WUHAN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of a single laser wavelength, only the intensity value of a single wavelength can be obtained, which lacks the most intuitive color information for people, and has obvious deficiencies in object recognition and later data processing.

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
  • Close-range photogrammetry color 3D scanning lidar
  • Close-range photogrammetry color 3D scanning lidar
  • Close-range photogrammetry color 3D scanning lidar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] By adding to the existing single-wavelength lidar technology, the color laser wavelength of red, green, blue, RGB / red, yellow, and blue RYB in the visible range is added to combine the three-dimensional space information of the lidar and the color laser spectrum information to enable the close-range measurement of the lidar While retaining the three-dimensional spatial resolution capability, it also has the ability to discriminate color spectrum. The close-range photogrammetric color lidar technology of the present invention can generate color laser imaging data for near-range targets at one time. By rendering the color laser imaging data, it can perform color laser point cloud imaging on the near-range targets, and comprehensively improve the lidar objects. The accuracy of recognition and the ability and application range of remote sensing detection of ground objects. The technical solution of the present invention will be described in detail below with reference to 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

A close-range photogrammetry colorful three-dimensional scanning laser radar comprises colorful laser light sources, a transmission optical system, a scanning system, a receiving optical system, a laser spectrum detection and distance-measuring circuit, a data collection and time sequence controller and a computer data processing unit. The colorful laser light sources comprise a red light pulse laser light source, a green or yellow light pulse laser light source, a blue light pulse laser light source and an infrared pulse laser light source, lasers emitted by the colorful laser light sources are synthesized into a laser beam through the transmission optical system, and are incident to the scanning system, colorful laser three-dimensional linear scanning is performed on a target ground object through the scanning system, echo signals formed by scanning are captured by the optical receiving system, intensity of pulse lasers obtained by detection of the laser spectrum detection and distance-measuring circuit and distance information of the target ground object are transmitted to a data collecting and time sequence controller for multi-channel data collection and time sequence calculation, and the result is output to the computer data processing unit.

Description

Technical field [0001] The invention relates to the technical field of surveying, mapping and remote sensing, in particular to a close-range photogrammetry color three-dimensional scanning laser radar. Background technique [0002] Ground-based close-range photogrammetry lidar technology usually detects in a single-wavelength manner, and realizes laser three-dimensional scanning imaging detection by rotating the rotating mirror and the base. However, due to the limitation of a single laser wavelength, only the intensity value of a single wavelength can be obtained, and the most intuitive color information for people is lacking. There are obvious deficiencies in feature recognition and later data processing. Summary of the invention [0003] The purpose of the present invention is to provide a close-range photogrammetric color lidar technology. Based on the existing single infrared laser light source of ground-based lidar, this technology has been developed to include colored lase...

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 Patents(China)
IPC IPC(8): G01S17/89
CPCG01S7/481G01S7/483G01S17/89
Inventor 龚威宋沙磊祝波史硕李德仁
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