山东建筑大学学报2025，Vol.40Issue(3)：101-106,114,7.DOI:10.12077/sdjz.2025.03.013
基于天地图获取城市区域高斯投影影像的方法
Obtaining Gauss projection images of urban areas method based on TIANDITU
摘要
Abstract
The application of remote sensing images from the TIANDITU platform is expanding across various sectors.However,the platform's reliance on an online service model and its use of non-Gauss spatial reference projections significantly limits its utility in urban engineering applications.To address this issue,this paper proposes a method for generating Gauss-projected urban imagery from TIANDITU using an image remapping algorithm.The algorithm transforms images from an equidistant cylindrical projection to a Gauss projection,while a source image redundancy technique is employed to eliminate edge null values often introduced during remapping.A pixel-based urban image coordinate system is established,the urban area is divided into image tile grids,and remapping calculations are performed for each tile to obtain the final Gauss-projected imagery.Jinan City is used as a case study to demonstrate the implementation of this method.This image-processing-oriented approach does not rely on specialized geographic information system(GIS)software,enabling the efficient acquisition of large-scale Gauss-projected urban images.It offers a practical solution for enhancing the applicability of TIANDITU imagery in urban engineering contexts.关键词
天地图/高斯投影/等距圆柱投影/图像重映射/源图像冗余Key words
TIANDITU/Gauss projection/equidistant cylindrical projection/image remapping/redundant source image分类
天文与地球科学引用本文复制引用
李健,吕永强,王峰,王本娟,南海燕,刘一葳..基于天地图获取城市区域高斯投影影像的方法[J].山东建筑大学学报,2025,40(3):101-106,114,7.基金项目
山东省重点研发计划(软科学)资助项目(2023RKY02005) （软科学）
