无人机航摄系统免像控快速测制大比例尺地形图关键技术分析

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中图分类号：P631 文献标志码：A 文章编号：2095-2945（2025）24-0140-04

Abstract：Inorder toensuretherapidextractionof surfacespatialinformation，aUAVaerialphotosystememerged.This systemcanobtainhigh-resolutionimagesandcanbeusedforlarge-scaletopographicmapsurveyingandmappng.Inorderto improvetheeficiencyofsurveyingandmappingandensuretheacuracyofsurveyingandmapping，thispaperadoptsthe image-freerapidmeasurementmethod.Onthebasisofnotsetinggroundimagecontrolpoints，thepapercombinesthebasic routeandtheframeworkroute，andusesPOS-asistedaerialphotogrammetrytoquicklycompletelarge-scaletopographicmap drawing.Also，thispaperintroducesthecoretechnologiesusedinsurveyingandmapping，andcombinesroadenginering examplestoanalyzetheapplicationprocessofthe UAVaerialcamerasystem toquicklymeasure large-scaletopographicmaps withoutphotocontrol.Itisconcludedthatthis methodhastheapplicationadvantagesof improvingsurveyingandmapping effciency， saving surveying and mapping costs，and applying results in a wide range.

Keywords：UAVaerial photography；image-freecontrol;large-scale topographicmap;topographicmapmapping；POSassisted aerial photogrammetry

无人机航测作业时，通常需要设置多个外业像控点，采用CORS系统实施重复观测，且空三处理时刺点控制难度较大，对施测人员的专业性要求较高，并且工作量较大，像控效果易受到天气、地形等因素限制，无法保障航测结果的准确性。（剩余4206字）