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Binocular laser vision three-dimensional measurement method for high-temperature red hot target

A three-dimensional measurement, line laser technology, applied in measurement devices, optical devices, instruments, etc., can solve the problems of inability to obtain the overall structure, uneven light fill, interference, etc., to save splicing time and ensure real-time effects.

Pending Publication Date: 2022-03-01
XIAN UNIV OF TECH
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Problems solved by technology

Although the former has higher precision, it can only observe a single position, and cannot obtain specific data of the overall structure.
The monocular camera supplementary light observation method is easily affected by the surrounding environment
For example, uneven lighting, local structure highlights, and water vapor and dust caused by forgings will greatly interfere with the results, making it impossible to obtain high-precision actual contour values.

Method used

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  • Binocular laser vision three-dimensional measurement method for high-temperature red hot target
  • Binocular laser vision three-dimensional measurement method for high-temperature red hot target
  • Binocular laser vision three-dimensional measurement method for high-temperature red hot target

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The binocular line laser vision three-dimensional measurement method for a high-temperature red-hot target specifically includes the following steps:

[0027] Step 1, collect images through the binocular camera, and define the images collected by the binocular camera as Al m×n , Ar m×n ; binocular camera means dual camera camera, Al m×n Represents the image matrix detected by the left eye camera, Ar m×n Represents the image matrix detected by the right eye camera, m represents the image A m×n The number of pixels in the horizontal direction, n represents the image A m×n The number of pixels in the vertical direction. The binocular camera includes a left-eye camera and a right-eye camera. figure 1 The a in the middle represents the left eye camera, figure 1 The middle b represents the right eye camera.

[0028] In step 2, the imag...

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Abstract

The invention discloses a binocular laser vision three-dimensional measurement method for a high-temperature red hot target, and the method specifically comprises the following steps: 1, collecting images through a binocular camera, and respectively defining the images collected by the binocular camera as Alm * n and Arm * n; 2, processing the image obtained in the step 1, and obtaining laser line coordinates of the image; 3, the gravity centers Dri and Dli of laser rays in the images are solved according to the images Arm * n and the images Arm * n obtained in the step 2; and step 4, calculating the distance Di from the binocular camera to the target object according to the result obtained in the step 3. According to the invention, real-time three-dimensional contour detection can be carried out on the forge piece with high precision.

Description

technical field [0001] The invention belongs to the technical field of machine vision in industrial sites under complex environments, and relates to a three-dimensional measurement method for binocular line laser vision of a high-temperature red-hot target. Background technique [0002] With the continuous upgrading of processing technology, the processing accuracy of high temperature forgings is also constantly improving. This directly causes the current processing technology to require more processing processes and processing steps. However, redundant machining processes and machining procedures will lead to the generation of new random errors, which will affect the final machining accuracy. Therefore, it is a very important process to detect the state of the casting in real time and correct it in real time during the casting process. At present, the commonly used detection schemes include: photoelectric tube positioning method and monocular camera supplementary light ob...

Claims

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Application Information

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IPC IPC(8): G01B11/00G01B11/24
CPCG01B11/00G01B11/24
Inventor 杨延西韩叔桓邓毅高异
Owner XIAN UNIV OF TECH
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