Point cloud data processing device, point cloud data processing system, point cloud data processing method, and point cloud data processing program

A data processing device and point group technology, applied in the direction of image data processing, image data processing, measuring devices, etc., can solve the problems of large processing time and inconvenient use, so as to shorten the processing time, save the amount of processed data, and save The effect of computation

Inactive Publication Date: 2013-03-06
KK TOPCON
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to form polygons from tens of thousands to tens of millions of points in point group data, it takes a huge processing time and is inconvenient to use

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
  • Point cloud data processing device, point cloud data processing system, point cloud data processing method, and point cloud data processing program
  • Point cloud data processing device, point cloud data processing system, point cloud data processing method, and point cloud data processing program
  • Point cloud data processing device, point cloud data processing system, point cloud data processing method, and point cloud data processing program

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0065] Hereinafter, an example of a point cloud data processing device will be described with reference to the drawings. The point cloud processing device according to the present embodiment includes a non-plane area removing unit that removes, from point cloud data that associates a two-dimensional image that is a measurement object, with three-dimensional coordinate data of a plurality of points corresponding to the two-dimensional image, Point group data related to non-area areas with a large computational burden. In addition, it is provided with: a surface labeling unit that assigns a label specifying a surface to the point cloud data excluding data of non-plane regions; and a contour calculation unit that uses a local plane based on a local area continuous from the labeled surface to calculate The outline of the object. In addition, a point cloud data reacquisition request processing unit 106 is provided to perform processing related to reacquisition of point cloud data....

no. 2 Embodiment approach

[0157] Hereinafter, a point cloud data processing device including a three-dimensional laser scanner will be described. In this example, the point cloud data processing device scans the object to be measured, irradiates the distance measuring light (laser), and measures distances from its own position to a plurality of measurement points on the object based on the time-of-flight of the laser light. In addition, the point cloud data processing device detects the irradiation direction (horizontal angle and elevation angle) of the laser light, and calculates the three-dimensional coordinates of the measurement point based on the distance and the irradiation direction. In addition, the point cloud data processing device acquires a two-dimensional image (RGB intensity at each measurement point) of the photographed measurement object, and forms point cloud data linking the two-dimensional image and three-dimensional coordinates. The point cloud data processing device further forms a...

no. 3 Embodiment approach

[0189] Hereinafter, a point cloud data processing device including an image measuring device including a stereo camera will be described. The same reference numerals are assigned to the same configurations as those in the first and second embodiments, and description thereof will be omitted.

[0190] (Structure of point cloud data processing device)

[0191] exist Figure 16 The point cloud data processing device 200 is shown in . The point cloud data processing device 200 has a configuration that combines the image measurement function of a stereo camera and the point cloud data processing function using the present invention. The point cloud data processing device 200 photographs the object to be measured in the photographing area repeated from different directions, and repeats the feature points in the image, based on the position and posture of the photographing part obtained in advance and the position of the feature point in the repeating image, Calculate the three-di...

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 point cloud data processing device comprises: a non-plane region removing unit (101) for removing point cloud data involved in a non-plane region, which cause a large computational load, from point cloud data associating a two-dimensional image of an object to be measured with three-dimensional coordinate data of a plurality of points constituting this two-dimensional image; a plane labeling unit (102) for assigning a label for specifying a plane to the point cloud data obtained after removing the data of the non-plane regions; a contour calculation unit (103) for calculating the contour of the object by using a local plane based on a local region continuing from the plane to which the label is assigned; and a point cloud data reacquisition request processing unit (106) for requesting for the reacquisition of point cloud data in order to enhance accuracy.

Description

technical field [0001] The present invention relates to a point cloud data processing technology, and in particular to a point cloud data processing technology for extracting features from point cloud data of a measurement object and automatically generating a three-dimensional shape in a short time. Background technique [0002] As a method of generating a three-dimensional shape from point cloud data of a measurement object, there is a method of connecting adjacent points to form a polygon. However, in order to form polygons from tens of thousands to tens of millions of points in point group data, it takes a huge processing time and is inconvenient to use. Therefore, techniques for automatically generating three-dimensional composite lines by extracting only three-dimensional features (edges and surfaces) from point cloud data are disclosed (for example, Patent Documents 1 to 3). [0003] In the invention described in Patent Document 1, a scanning laser device scans a thr...

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): G01B11/24G06T1/00G06T7/00
CPCG06K9/4671G06T2210/56G06T7/0083G06T17/00G01C15/002G06T2207/10028G01B11/24G06T7/12G01S17/42G01S17/89
Inventor 北村和男高地伸夫伊藤忠之大谷仁志
Owner KK TOPCON
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