Maine Orthoimagery Municipal York 2005 (Imagery Layer)
收藏资源简介:
Tile Download Link 2005 aerial orthophotos at a resolution of 6 inches for York, Maine. Bradstreet Consultants, Inc. used the aerial photography flown in one session on April 18, 2005, at a resolution of 0.5' pixel (similar to 1"=600'). Bradstreet Consultants, Inc. gathered control points to support full analytical aerotriangulation. The aerotriangulation solution was used to set up each stereopair of photos for orthorectification and DTM compilation. The ortho imagery was rectified from the natural color digial imagery employing a digital terrain model (DTM) and supplemented from updating some town's original DTM and some town's from scratch using the imagery in softcopy (digital) stereoplotter in the Kork KDMS and DAT/EM AutoCAD DWG format.
分块影像下载链接:美国缅因州约克市(York, Maine)2005年航空正射影像数据集,地面采样分辨率为6英寸(即0.5英尺/像素,对应比例尺约为1英寸=600英尺)。该数据集依托布拉德斯特里特咨询有限公司(Bradstreet Consultants, Inc.)于2005年4月18日单次飞行采集的航空摄影数据制作;该公司采集了控制点以支撑全解析空中三角测量作业,本次空中三角测量解算结果被用于构建每一组立体像对,以完成正射校正与数字地形模型(Digital Terrain Model, DTM)的编绘工作。本次正射影像由天然彩色数字航空影像结合数字地形模型校正生成,其补充完善工作分为两部分:一是更新部分城镇的原有数字地形模型,二是在Kork KDMS与DAT/EM软件环境中,利用软拷贝(数字)立体测图仪,基于该航空影像从零开始构建部分城镇的数字地形模型,最终成果采用AutoCAD DWG格式存储。



