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Structure six-degree-of-freedom motion measurement system based on binocular vision and measurement method thereof

A measurement method and binocular vision technology, applied in measurement devices, instruments, optical devices, etc., can solve the problems of poor engineering practicability, complicated operation, inconvenient technical operation, etc., and achieve the effect of meeting the needs of high-precision measurement

Active Publication Date: 2020-12-04
HARBIN INST OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the invention is to solve the problems of inconvenient technical operation, low measurement accuracy, high cost, low applicability, complicated operation and poor engineering practicability when the traditional measurement method deals with six-degree-of-freedom motion measurement. Measuring method of structural six-degree-of-freedom motion measurement system for binocular vision

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  • Structure six-degree-of-freedom motion measurement system based on binocular vision and measurement method thereof
  • Structure six-degree-of-freedom motion measurement system based on binocular vision and measurement method thereof
  • Structure six-degree-of-freedom motion measurement system based on binocular vision and measurement method thereof

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Embodiment Construction

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] A measurement method for a structural six-degree-of-freedom motion measurement system based on binocular vision, the measurement system includes two cameras and a computer, the two cameras are connected to the computer through a network cable, and the computer is connected to a synchronous trigger , through the computer to control the synchronous trigger to send the acquisition signal to the camera synchronously;

[0055] The two cameras are...

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Abstract

The invention discloses a structure six-degree-of-freedom motion measurement system based on binocular vision and a measurement method thereof. The method comprises the steps that 1, pasting a circular target to the surface of a structure, and arranging at least three measuring points with the center of the circular target as the measuring point; 2, calibrating a vision measurement system by usinga checkerboard calibration method; 3, capturing target motion by using two cameras; 4, performing image point coordinate optimization on the target motion captured in the step 3; and step 5, completing six-degree-of-freedom measurement of the structure. The objective of the invention is to solve the problems of inconvenient technical operation, low measurement precision, high cost, low applicability, complex operation and low engineering practicality when a traditional measurement method is used for processing six-degree-of-freedom motion measurement.

Description

technical field [0001] The invention belongs to the technical field of structural six-degree-of-freedom motion measurement; in particular, it relates to a structural six-degree-of-freedom motion measurement system and a measurement method based on binocular vision. Background technique [0002] At present, measurement methods can be divided into contact measurement and non-contact measurement. Measuring methods such as pull-wire displacement gauge, dial indicator, linear variable differential transformer sensor, etc. are common contact measurement methods. These methods have high precision and high reliability, but the sensor layout of these methods is troublesome. , Low efficiency, greatly affected by the site and environment. When the measurement conditions are harsh, such as severe deformation of components, high temperature or severe temperature changes, the accuracy of contact sensors is difficult to guarantee. [0003] Non-contact measurement does not have direct con...

Claims

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Application Information

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IPC IPC(8): G01B11/02G01B11/26
CPCG01B11/028G01B11/26G01B21/042
Inventor 单宝华熊亚凡
Owner HARBIN INST OF TECH
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