基于ERDAS LPS的大数据量航摄遥感影像DOM制作

Large Data Amount of DOM Production Based on ERDAS LPS

数字正射影像图DOM(Digital Orthophoto Map)是对航空(或航天)相片进行数字微分纠正和镶嵌,按一定图幅范围裁剪生成的数字正射影像集。它是同时具有地图几何精度和影像特征的图像。基于ERDAS LPS处理了某水电站测区大数据量航摄遥感影像并制作了DOM。ERDAS LPS是美国ERDAS公司开发的数字摄影测量系统,LPS核心模块涵盖了正射影像制图和镶嵌所需的全部功能。结合某水电站的大数据量、高分辨率航摄影像资料,介绍了应用LPS制作正射影像的处理流程并进行了分析,指出了制作过程中的注意事项,以期对航摄遥感影像DOM的制作和ERDAS LPS软件的使用提供一定借鉴。

DOM is a digital orthophoto map that is digitally corrected and inlaid for aeronautical(or aerospace)photos and cropped by a certain range of frames.It is an image that has both geometric accuracy and image characteristics of the map.Based on ERDAS LPS,large-data aerial photography images of a hydropower station and produces DOM is processed.ERDAS LPS is a digital photogrammetry system developed by the United States of America ERDAS company.The core module of LPS includes all functions needed by DOM making and mosaic.Combined with aerial images with large data and high resolution of one hydropower station in Burma,the processing flow of DOM making with LPS is introduced and analyzed.It also pointed out some notes about the making process in order to work as certain reference for DOM making,and as certain guidance for ERDAS LPS using.