Quick morphology vision measuring method in multi-laser synergic scanning mode

A visual measurement, multi-laser technology, used in measurement devices, optical devices, instruments, etc.

Inactive Publication Date: 2014-07-23
DALIAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Solved the problem of fast and accurate measurem

Method used

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  • Quick morphology vision measuring method in multi-laser synergic scanning mode
  • Quick morphology vision measuring method in multi-laser synergic scanning mode
  • Quick morphology vision measuring method in multi-laser synergic scanning mode

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Embodiment Construction

[0034] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings. attached figure 1 It is the principle diagram of multi-laser cooperative scanning visual topography measurement. This method adopts two left and right cameras 1, 1' to collect images of the measured object 5 and the vertical laser stripe 2 in real time, transmit the collected images to the graphics workstation 6, and use the projected colored light strips to carry out area coding to assist in completing the left, right, and vertical laser stripes. The right image is laser matched, and the three-dimensional reconstruction of multiple laser stripes on the surface of the measured object 5 is performed to obtain the shape information of the measured object 5 .

[0035] First install the measuring device, fix the left and right cameras 1, 1', adjust the focal length so that the measured object 5 fills the public field of ...

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Abstract

The invention discloses a quick morphology vision measuring method in a multi-laser synergic scanning mode, belongs to the technical field of computer vision measurement and relates to a quick big component morphology measuring method in the multi-laser synergic scanning mode. The method comprises the steps that firstly, colorful light bars are projected to the surface of an object to be measured, and then color area coding within a measurement range is conducted; secondly, multiple lasers are projected to the surface of a component to be measured, the multiple lasers are scanned simultaneously by controlling a rotating platform, laser stripes are subjected to image extraction and matching according to the binocular vision measurement theory, and then quick measurement of morphology is achieved finally. By the adoption of the quick morphology vision measuring method in the multi-laser synergic scanning mode, quick and accurate big component morphology measurement without any processing on a target object is achieved, and the image acquisition quality is improved through high brightness and high condensation of the lasers; besides, color area coding is used for assisting in accurate matching of the multiple laser stripes, so that the matching requirement and the calculated amount are greatly lowered, and the measurement efficiency of the whole system is improved.

Description

technical field [0001] The invention belongs to the technical field of computer vision measurement, and relates to a rapid shape measurement method for multi-laser cooperative scanning of large components. Background technique [0002] The rapid shape measurement of large components plays a very important role in the fields of aviation, aerospace and large-scale manufacturing. Large components are large in size, complex in process, difficult to process, and difficult to find if the shape is not violently deformed. It is very necessary to measure the shape of the component. With the continuous development of aviation and aerospace technology, aircraft components are gradually becoming integrated and large-scale, which puts forward new requirements for shape measurement. The overall, fast and accurate shape measurement of large components still needs to be solved at this stage main problem. [0003] At present, there are few studies on the shape measurement of large componen...

Claims

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Application Information

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IPC IPC(8): G01B11/25
Inventor 刘巍马鑫贾振元尚志亮张洋李肖李晓东高航
Owner DALIAN UNIV OF TECH
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