正射影像DOM的生产与质量控制方法研究

随着摄影测量与遥感以及计算机软硬件技术的快速发展,数字正射影像(DOM)具有地物地貌表达直观形象、图像信息量大和地物表达丰富等特点,使得正射影像图在城市规划和土地调查中的应用越来越深入。本文对数字正射影像的制作流程进行了详细的阐述,并分析了数字正射影像图在生产中产生的问题以及其精度不高的原因,指出了数字正射影像图制作流程中决定最终成果质量的关键环节,通过河南省永城市土地调查项目生产DOM实验流程,介绍了基于无人机和Inpho制作流程,在制作过程中对成果的质量、精度存在的问题及解决方案进行了分析。

Research on Production and Quality Control Methods of Orthophoto DOM

With the rapid development of photogrammetry and remote sensing and computer technology,Digital orthophoto(DOM)has a more intuitive image of landform expression,large amount of image information and rich expression of features,making the application of orthophoto in urban planning and land survey more and more in-depth.This paper describes the production process of digital orthophoto.The problems in the production of digital orthophoto images and the reasons for their low quality are analyzed.The key steps in determining the quality of final results in the process of digital orthophoto mapping are pointed out.Through the production process of DOM in the Yongcheng land survey project of Henan Province,the UAV and Inpho production processes are introduced,and the problems of quality and accuracy of the results and solutions are analyzed in the production process.