一种三维地图数据的压缩方法、装置、介质及计算机设备

By reducing and compressing the latitude and longitude data of 3D map data into 1D data and converting the elevation data into floating-point data, and combining this with a preset coordinate compression data model to generate coordinate compressed data, the problems of large storage space and low transmission efficiency of 3D map data are solved, achieving more efficient data storage and transmission.

CN116204499BActive Publication Date: 2026-07-17AUTONAVI SOFTWARE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AUTONAVI SOFTWARE CO LTD
Filing Date
2023-01-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing 3D map data compression schemes cannot effectively reduce storage space and data transmission efficiency, resulting in increased front-end content download and parsing time, which affects user experience.

Method used

By reducing the latitude and longitude data of 3D map data to 1D data and converting the elevation data to floating-point data, coordinate compressed data is generated by combining it with a preset coordinate compressed data model, and the final compressed data is generated using the 3D map compressed data model.

Benefits of technology

It effectively reduces the storage space occupied by 3D map data and the amount of data returned by the server, reduces the content download and parsing time on the front end, and improves data transmission efficiency and user experience.

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Abstract

本公开涉及一种三维地图数据的压缩方法、装置、介质及计算机设备。本公开实施例中,在获取三维地图数据中各坐标点的经纬度数据和高程数据后,通过将二维的经纬度数据降维压缩为目标一维数据,并将高程数据转换格式为占用更少存储空间的高程压缩数据,进而生成坐标压缩数据,实现三维地图数据中坐标数据的压缩;从而,利用三维地图数据中各坐标点对应的坐标压缩数据,生成三维地图压缩数据,以便降低三维地图数据的存储占用空间,当满足查询条件的地图要素数据量较大时,以便降低服务端返回的数据量,进而减少前端的内容下载时间和前端解析数据时间。
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