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Method and device for storing point cloud data

A point cloud data and cloud data technology, applied in the field of computer information, can solve the problems including the difference in the number of points and the uneven distribution of point cloud data, and achieve the effect of reducing storage capacity, saving storage space, and good effect.

Active Publication Date: 2017-06-20
SUZHOU ZHONGKE TUXIN NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The point cloud data storage method provided in this embodiment, from the root node to all intermediate nodes and leaf nodes, the files corresponding to each node contain point data, and there are no repeated points in all files, which solves the problem of point cloud data When the distribution is uneven, the number of points contained in each subunit space after equidistant division varies greatly

Method used

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  • Method and device for storing point cloud data
  • Method and device for storing point cloud data
  • Method and device for storing point cloud data

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Embodiment Construction

[0022] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, so they are only examples, and should not be used to limit the protection scope of the present invention.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0024] Such as figure 1 As shown, a storage method for point cloud data provided in this embodiment includes:

[0025] Step S1, calculate the bounding box of the point cloud data.

[0026] Among them, the bounding box is a geometry that can contain all point cloud data and has the smallest volume, such as a sphere, a cube, and the like. The most common bounding box algorithms ...

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Abstract

The invention belongs to the technical field of computer information, and specifically relates to a method and a device for storing point cloud data. The method for storing point cloud data comprises: calculating a bounding box of the point cloud data; according to an octree structure, performing recursion segmentation on the bounding box, each hierarchy of the octree structure being corresponding to a dot pitch; after segmentation of each time, according to the dot pitch of a current hierarchy, determining whether points in each subcell space obtained by segmentation belong to the current hierarchy, storing information of the points which belong to the current hierarchy in a file form, wherein each subcell space obtained by segmentation is corresponding to a node in the current hierarchy, and each node is corresponding to a file. The method and the device for storing point cloud data reduce storage size of point cloud data, improve reading, query, and rendering efficiency of the point cloud data.

Description

technical field [0001] The invention relates to the field of computer information technology, in particular to a method and device for storing point cloud data. Background technique [0002] Cloud point data means that the scanned data is recorded in the form of points, each point contains three-dimensional coordinates, and some may contain color information (RGB) or reflection intensity information (Intensity). Usually, the data obtained during scanning will grow geometrically according to the size of the scanned space. Therefore, operations such as storing, querying, and reading point cloud data through computers usually require a lot of calculations, and the timeliness is poor. Contents of the invention [0003] Aiming at the defects in the prior art, the method and device for storing point cloud data provided by the present invention reduce the storage capacity of point cloud data and improve the efficiency of reading, querying and rendering of point cloud data. [00...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/13
Inventor 贾庆雷马柳青周淮浦
Owner SUZHOU ZHONGKE TUXIN NETWORK TECH CO LTD
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