Laser scanning three-dimensional imaging correction method

A technology of laser scanning and three-dimensional imaging, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of difficult material perception, uneven distribution of dot matrix, failure, etc., and achieve the effect of good data information

Pending Publication Date: 2021-04-16
HENAN WEIHUA HEAVY MACHINE
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dot matrix information of laser scanning is a key part of material information perception, but in the actual scene, because the distance between the material and the scanner is different, and the scanning resolution of the laser scanning head is unchanged, so that the point The uneven distribution of arrays brings great problems to the later processing, which makes the perception of materials difficult or even fails.

Method used

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  • Laser scanning three-dimensional imaging correction method
  • Laser scanning three-dimensional imaging correction method
  • Laser scanning three-dimensional imaging correction method

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Effect test

Embodiment

[0038] The laser scanner is installed on the crane or above the material to be measured. Due to the generally used point laser scanning, the scanning process is as follows: figure 2 As shown: In the set scanning interval, the laser scans from point A to point B, and then returns to scan point B1 from A1, and so on until the entire set interval is completed.

[0039] Due to the continuous update of scanning information, the scanned data is read in socket form in real time, and then stored in the database.

[0040] When the entire scan is completed, the database will store the 3D bitmap of the entire scanning area, and this bitmap data records the angle of the entire pan / tilt and the angle of the laser, which have been measured and recorded.

[0041] The database program sorts the three-dimensional data of the scanned data according to certain rules, and deletes some data beyond the normal range, and filters and inserts two adjacent normal data.

[0042] Since the scanning res...

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Abstract

A laser scanning three-dimensional imaging correction method comprises the steps: obtaining laser dot matrix data by scanning an object through laser and storing the laser dot matrix data in a database; reading the laser dot matrix data from the database to a temporary variable data table; compensating the scanned dot matrix data and inserting dot values; carrying out matrix transformation of coordinates after dot matrix data is inserted; and storing and outputting the converted dot matrix data. According to the invention, through real-time measurement based on a scanning angle and an inclination angle, a data insertion method relative to a certain specific point is solved, conversion of a dot matrix from a sparse inconsistent state to a uniform dot matrix is achieved, so that the dot matrix can truly reflect an actual object state, and good data information is provided for subsequent dot matrix graphic processing.

Description

technical field [0001] The invention relates to the technical field of dot matrix graphics processing, in particular to a complex deformed dot matrix processing method. Background technique [0002] At present, in the intelligent control system of cranes, the information perception of lifting materials is an indispensable part, and there are many methods of information perception, such as machine vision, laser, radar, various sensors, etc. Different application scenarios, and the laser scanning method has many advantages such as strong anti-interference ability and strong environmental adaptability, and has gained more and more applications. The dot matrix information of laser scanning is a key part of material information perception, but in the actual scene, because the distance between the material and the scanner is different, and the scanning resolution of the laser scanning head is constant, so that the point The uneven distribution of arrays brings great problems to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
Inventor 周强聂福全刘光辉张振强张栋梁周静娴单迎歌
Owner HENAN WEIHUA HEAVY MACHINE
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