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Laser pattern extraction method, device, laser measurement equipment and system

A technology of laser measurement and extraction method, applied in the field of image processing, can solve the problem of inaccurate pixel coordinate extraction results of laser lines, and achieve the effect of improving accuracy and solving application requirements.

Active Publication Date: 2022-06-28
AUTEL INTELLIGENT TECHNOLOGY CORP LTD
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Problems solved by technology

[0004] In view of the above problems, the embodiments of the present invention provide a laser pattern extraction method, device, laser measurement equipment and system, which are used to solve the inaccurate extraction results of the pixel coordinates of the laser line when the outdoor ambient light is strong in the prior art The problem

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  • Laser pattern extraction method, device, laser measurement equipment and system
  • Laser pattern extraction method, device, laser measurement equipment and system
  • Laser pattern extraction method, device, laser measurement equipment and system

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[0067] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein.

[0068] Monocular laser measurement systems generally include cameras, lasers, host systems, display systems, storage systems, and power systems. The laser emitted by the laser is projected vertically to the surface of the measurement target, the camera deviates from the laser at a certain angle to capture the image, and the projection distance between the laser and the target is calculated according to the principle of laser triangulation. Among them, the process of laser measurement by the host system includes: laser image capture, image preprocessing, laser line pixel coordinate extraction, coordinate projection tr...

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Abstract

The embodiment of the present invention relates to the technical field of image processing, and discloses a laser pattern extraction method, device, laser measuring equipment and system. The method includes: acquiring a first laser image containing the laser pattern; identifying the brightness of the current application environment of the laser measuring device according to the first laser image; judging the difference between the brightness of the current application environment of the laser measuring device and the first laser image Whether a laser image matches; if the judged result is no, obtain a second laser image matching the brightness of the current application environment of the laser measurement device; extract the laser pattern from the second laser image. Through the foregoing manner, the embodiments of the present invention improve the accuracy of laser pattern extraction in various scenarios.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular, to a laser pattern extraction method, device, laser measurement device, and system. Background technique [0002] Laser triangulation is a machine vision technique that captures three-dimensional measurement data by pairing a laser light source with a camera. Monocular laser triangulation uses a single camera to calculate the distance from the target to the camera using the principle of similar triangles. [0003] Monocular laser triangulation requires analyzing the pixel coordinates of the laser pattern from the camera image. When the outdoor ambient light is strong, the pixel coordinate extraction of the laser pattern is not accurate. How to accurately extract the pixel coordinates of the laser pattern under different ambient light brightness is an urgent problem to be solved. SUMMARY OF THE INVENTION [0004] In view of the above problems,...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/25G01B11/00G01B11/14G06T5/00G06T5/40G06T7/00H04N5/235
CPCG01B11/25G01B11/14G01B11/002G06T7/0004G06T5/40G06T2207/10024H04N23/71H04N23/73G06T5/90
Inventor 王维林
Owner AUTEL INTELLIGENT TECHNOLOGY CORP LTD
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