A True Color Processing Method of Point Cloud Model in 3D Laser Imaging System

An imaging system and point cloud model technology, applied in the field of image processing, can solve problems such as no true color processing

Active Publication Date: 2016-09-21
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology

[0004] The laser point cloud formed by the 3D laser imaging system is a 3D laser point cloud, and there is currently no method for true color processing

Method used

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  • A True Color Processing Method of Point Cloud Model in 3D Laser Imaging System
  • A True Color Processing Method of Point Cloud Model in 3D Laser Imaging System
  • A True Color Processing Method of Point Cloud Model in 3D Laser Imaging System

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Embodiment Construction

[0055] The basic principle of the present invention is to adopt the method of combining photos and point clouds to first obtain the navigation time information T and navigation polar coordinate position information of the inertial group center in the earth coordinate system And navigation attitude information (γ, θ, ψ), point cloud polar coordinate information and photos. According to the photo shooting time T i , calculate the polar coordinate position of the inertial group center in the earth coordinate system when the photo is taken and attitude information (γ i ,θ i ,ψ i ), according to the polar coordinate position of the inertial group center in the earth coordinate system when the photo was taken Get the conversion matrix from the earth coordinate system to the northeast sky coordinate system According to the attitude information of the inertial group center in the earth coordinate system when the photo was taken (γ i ,θ i ,ψ i ) to get the conversion matr...

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Abstract

The invention discloses a point cloud model true color processing method of a three-dimensional laser imaging system. By a method of combining photos and point cloud, true color information of a scanned object is extracted through coordinate transformation to complete point cloud model true color processing. According to the invention, the trouble that true color processing of a three-dimensional stereoscopic model cannot be carried out at present is solved. Meanwhile, manual judgment is not required, there is no need to distinguish the shape of an object, and the point cloud is directly colored. The method provided by the invention has advantages of fast arithmetic speed, low time overhead and small workload. By the adoption of the method, true color effect of a three-dimensional stereoscopic model can be achieved well.

Description

technical field [0001] The invention relates to a three-dimensional laser imaging system, in particular to a true-color processing method for a point cloud model of the three-dimensional laser imaging system, and belongs to the technical field of image processing. Background technique [0002] The 3D laser imaging system refers to the integration of laser scanner, global positioning system, inertial measurement system, etc. into a set of equipment, which is installed on the carrier to scan the ground target, obtain the 3D information of the ground target, and obtain the required 3D space image through processing . Since the acquired reflected laser point data is densely distributed in a nebular shape, it is vividly called a laser point cloud (Point Cloud), which means that countless points present the results of objects in the computer according to the rules of measurement. The 3D laser imaging system obtains the true color 3D model of the scanned object by matching true co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G01B11/00
Inventor 魏宗康赵龙夏刚刘生炳于兰萍魏子寅
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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