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Mass vehicle-mounted point cloud data backtracking method and device

A point cloud data and backtracking method technology, which is applied in database update, image data processing, geographic information database, etc., can solve the problem of lack of massive vehicle point cloud data backtracking methods, and achieve the effect of point cloud data backtracking

Pending Publication Date: 2022-05-06
WUHAN ZHONGHAITING DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, vehicle-mounted point cloud data is an important input for updating high-precision map data, but there is a lack of a retrospective method for massive vehicle-mounted point cloud data. The present invention mainly proposes to solve this problem

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  • Mass vehicle-mounted point cloud data backtracking method and device
  • Mass vehicle-mounted point cloud data backtracking method and device
  • Mass vehicle-mounted point cloud data backtracking method and device

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Embodiment Construction

[0048] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] figure 1 A schematic flow chart of a massive vehicle-mounted point cloud data backtracking method provided by an embodiment of the present invention, as shown in figure 1 As shown, the method includes:

[0050] S1: Preprocessing of point cloud data, collecting information related to the measuring station and archiving and storing the data files;

[0051] Said step S1 comprises:

[0052] S11: Information collection, collect the station information of the point cloud data collected in the same batch to generate a unique code for the station, which is defined as the station ID; the station ID uses the license plate number of the collection vehicle, the date of colle...

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Abstract

The invention provides a massive vehicle-mounted point cloud data backtracking method and device, and the method comprises the following steps: S1, preprocessing point cloud data, collecting information related to an observation station, and archiving and storing a data file; s2, extracting a point cloud data vector line, and adopting a road surface center line of vehicle-mounted point cloud data as the vector line of the point cloud data; s3, constructing a backtracking base map vector of the massive point cloud data, and performing grid cutting, vector synthesis and space matching on a point cloud data vector line to form a base map vector; and S4, historical backtracking of massive point cloud data: extracting associated vector lines by setting a spatial range, then reading iteration historical records stored by the vector lines, and finally querying associated point cloud data according to the iteration historical records. The backtracking of the mass point cloud data is realized based on the mass point cloud vector base map and the iteration history, and the problem of backtracking of the point cloud data of high-precision map production is solved.

Description

technical field [0001] The invention relates to the technical field of massive point cloud data management of high-precision map making machines, in particular to a method and device for backtracking massive vehicle-mounted point cloud data. Background technique [0002] In the field of high-precision map production, data backtracking is extremely important for the update and production of map data. At present, vehicle-mounted point cloud data is an important input for updating high-precision map data, but there is a lack of a retrospective method for massive vehicle-mounted point cloud data. The present invention is mainly proposed to solve this problem. Contents of the invention [0003] The present invention provides a massive vehicle-mounted point cloud data backtracking method and device for overcoming the above-mentioned problems or at least partially solving the above-mentioned problems. [0004] According to a first aspect of the present invention, there is provid...

Claims

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Application Information

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IPC IPC(8): G06F16/29G06F16/23G06T17/05G06T17/20
CPCG06F16/29G06F16/23G06T17/05G06T17/205
Inventor 刘圆惠念陈操刘春成
Owner WUHAN ZHONGHAITING DATA TECH CO LTD