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A laser point cloud hole patching and coloring method

A laser point cloud and void technology, applied in the field of laser scanning, can solve the problems of point cloud color information distortion or loss, incomplete structural information, missing point cloud, etc., to achieve the effect of improving accuracy and quality

Active Publication Date: 2020-10-23
四川省安全科学技术研究院
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Problems solved by technology

[0010] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a laser point cloud hole repair and coloring method, which is used to solve the problems existing in the prior art, such as missing point clouds at key parts, incomplete structural information, distortion or loss of point cloud color information, There is no point cloud color information in the hollow area and the problem of poor quality of point cloud data

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  • A laser point cloud hole patching and coloring method
  • A laser point cloud hole patching and coloring method
  • A laser point cloud hole patching and coloring method

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[0052] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0053] A laser point cloud hole repair coloring method, such as figure 1 shown, including the following steps:

[0054] S1: Use 3D laser scanning technology to scan the surface of the measured object to obtain 3D laser point cloud data with hollow areas;

[0055] S2: Obtain the size information of the hole area in the 3D laser point cloud data, and intercept the point cloud area with hole information according to it;

[0...

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Abstract

The invention discloses a laser point cloud hole repairing and coloring method which is characterized by comprising the following steps: S1, scanning the surface of a measured object to obtain three-dimensional laser point cloud data with a hole area; s2, intercepting a point cloud area with cavity information; s3, obtaining color image data of the point cloud area with the cavity information; s4,performing coloring processing on the first point cloud data of the non-cavity area to generate first color point cloud data; s5, performing fitting to generate second point cloud data of the cavityarea; s6, performing coloring processing on the cavity area to generate second color point cloud data; s7, obtaining complete three-dimensional laser point cloud data according to the first color point cloud data and the second color point cloud data; the method solves the problems that in the prior art, key part point cloud is lost, structural information is incomplete, point cloud color information is distorted or lost, no point cloud color information exists in a hollow area, and the point cloud data quality is poor.

Description

technical field [0001] The invention belongs to the technical field of laser scanning, and in particular relates to a laser point cloud hole repairing and coloring method. Background technique [0002] Three-dimensional laser scanning technology is also called "real scene replication technology". It uses the method of high-speed laser scanning measurement to quickly obtain the three-dimensional coordinate data of the surface of the measured object with a large area and high resolution. It is a technical method that can quickly and massively collect spatial point information and quickly establish a three-dimensional image model of an object. The scanning result is directly displayed as a point cloud (countless points present the result of objects in the computer according to the rules of measurement), and the space point cloud data obtained by using 3D laser scanning technology can quickly establish 3D visualization of complex and irregular scenes. Model, saving time and ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T7/90
CPCG06T5/005G06T2207/10028G06T7/90
Inventor 王自力黄志煌王立娟郭万佳马松施轶凡黄昌萍尹恒廖鑫余梨
Owner 四川省安全科学技术研究院
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