Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multiple-section synthesizing three-dimensional profile measuring method

A three-dimensional measurement, multi-section technology, applied in the direction of measuring devices, image data processing, image data processing, etc., can solve the problems of difficult measurement needs and high cost, and achieve the effect of improving the measurement speed

Inactive Publication Date: 2004-02-11
XIAN UNIV OF POSTS & TELECOMM +1
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The three-dimensional measurement sensor of light section method is generally composed of light knife, camera and image acquisition device. The light knife image collected by the computer is processed to obtain the three-dimensional shape data of the measured object. The cross-sectional measurement speed of such a system is determined by the camera frame or The field rate is determined. For example, the field rate of a PAL camera is 50 fields per second, that is, it can measure up to 50 sections per second. It is difficult to meet the measurement needs in high-speed online measurement. Although the field rate of a high-speed camera can reach hundreds of fields per second, but the cost is high

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
  • Multiple-section synthesizing three-dimensional profile measuring method
  • Multiple-section synthesizing three-dimensional profile measuring method
  • Multiple-section synthesizing three-dimensional profile measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Describe method and device of the present invention in detail below in conjunction with accompanying drawing:

[0020] Such as figure 1 As shown, the measured object 4 is placed on the transmission device 1, and the three-dimensional measurement sensor array 2 is placed above the transmission device 1 and the measured object 4, and the image acquisition and processing device 3 receives the image measurement data sent by the three-dimensional measurement sensor array 2, and data processing. Method of the present invention is realized according to the following steps:

[0021] 1) The transmission device 1 has a measurement reference plane for placing the measured object, and can move the measured object 4 at a constant speed V;

[0022] 2) Install the three-dimensional measurement sensor array 2 above the transmission device to ensure that the optical axis of the light knife of the three-dimensional measurement sensor is perpendicular to the measurement reference plane...

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 multiple-section synthesizing 3D profile measuring method adopts a conveying unit to translate object to be measured in constant speed, several optically cutting 3D measuring sensors to constitute a 3D array for the measurement of the object, and a computer to synthesize the cross section data of the sensors to perform real-time in-situ measurement of 3D object profile sizes in doubled equivalent cross section measurement speed. The present invention may be used in the non-contact high-speed in-situ measurement of various object profile.

Description

1. Technical field [0001] The invention relates to the technical field of photoelectric detection, and further relates to a multi-section synthetic three-dimensional surface measurement method. 2. Background technology [0002] The line-structured light three-dimensional surface measurement method (also known as the light section method) is a non-contact photoelectric three-dimensional measurement technology. Such as figure 2 As shown, in this method, a line light source P (also known as a light knife) is vertically projected onto the surface A of the measured object, and the reflected image A' is used to measure the shape and surface geometry data of the object. The optical axis of the camera is clamped with the light knife P The angle is α, M is the measurement reference plane, L is the camera lens, extract the distance h′ between the center position of the light knife and the center of the image plane o’ from the reflected light knife image, and then use the principle of...

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): G01B11/24G06T1/00
Inventor 陈文艺蒋克俭姜涛李兵赵宏
Owner XIAN UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com