The production of 1:10 000 DOM using rare satellite image control points:taking the survey area of Alxa League as an example

doi:10.13474/j.cnki.11-2246.2022.0093

Abstract

Abstract: Aiming at the problem of using control points to correct high-resolution satellite remote sensing images in areas with difficult image control,a block adjustment method based on rare image control points is proposed,which uses high-precision DEM for constraints,and uses satellite images to quickly produce 1:10 000 DOM.In this study,the survey area of Alxa League is selected as the test area and the accuracy evaluation is performed.The results show that the accuracy of 1:10 000 DOM can be met by using rare image control points,which can realize the rapid production of remote sensing images based on rare control points,and can effectively solve the difficulty of obtaining control points.This method can greatly improve the production schedule due to DOM accuracy and schedule problems caused by the problem,and can provide reference for deserts,forest areas and other areas lacking control points.

Key words: high-resolution satellite image;RPC model;block adjustment;layout of image control points;accuracy analysis

CLC Number:

LI Zhijuan, LI Hui, LIU Jianjun, ZHANG Donghua. The production of 1:10 000 DOM using rare satellite image control points:taking the survey area of Alxa League as an example[J]. Bulletin of Surveying and Mapping, 2022, 0(3): 143-147.

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