Maine Orthoimagery Municipal Rockland 2007 (Imagery Layer)

Tile Download Link 2007 orthoimagery collection for Rockland, Maine. The data were acquired 4/21/2007 under leaf-off, no-snow conditions. Photo scale is 1"=660', and was collected with 60% overlap and 30% sidelap, and scanned at 14 microns with a photgrammetric-grade scanner. The orthoimagery was created from the scanned aerials, the aerial camera calibration report, ground control and aerotriangulation data, and a digital terrain model. Imagery was delivered in MrSID format.缅因州罗克兰市2007年正射影像(orthoimagery)图集瓦片下载链接。该数据集采集于2007年4月21日，采集时植被无叶且无积雪覆盖。影像比例尺为1英寸=660英尺，采集时航向重叠度为60%、旁向重叠度为30%，采用摄影测量级扫描仪以14微米的分辨率完成扫描。该正射影像由扫描后的航空影像、航空相机校准报告、地面控制点与空中三角测量数据，以及数字地形模型生成。影像以MrSID格式交付。