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.
CN106874409AActive Publication Date: 2017-06-20SUZHOU ZHONGKE TUXIN NETWORK TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU ZHONGKE TUXIN NETWORK TECH CO LTD
Publication Date
2017-06-20

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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.
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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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