Addison Township MrSID 2025

<p><span>This metadata record describes the 0.25-foot pixel resolution digital orthoimagery produced for Oakland County, MI by the Sanborn Map Company. The orthoimagery provided is 4-band (R, G, B, NIR), 8-bit per pixel and delivered in uncompressed TIFF/TFW format and compressed 3-band (R, G, B) MrSID mosaics (20:1, Gen3). The data was flown between April 27th and May 12th, 2025 at an altitude of 15700 feet (AMSL) using an UltraCam Osprey M3 camera and complies with the American Society for Photogrammetry and Remote Sensing Accuracy Standards (ASPRS) for Class 1, large scale maps at 1" = 50'.&nbsp; This orthoimagery is published in Michigan South State Plane, NAD83, International foot.</span></p>

本元数据记录所描述的，是由桑伯恩地图公司（Sanborn Map Company）为密歇根州奥克兰县生产的0.25英尺像素分辨率数字正射影像（digital orthoimagery）。本次提供的正射影像包含4波段（红、绿、蓝、近红外），每像素8位，以未压缩TIFF/TFW格式以及压缩比20:1的3波段（红、绿、蓝）MrSID镶嵌图（Gen3）形式交付。该数据采集于2025年4月27日至5月12日期间，飞行高度为15700英尺（平均海平面高度），采用UltraCam Osprey M3相机拍摄，符合美国摄影测量与遥感学会（American Society for Photogrammetry and Remote Sensing, ASPRS）针对1英寸=50英尺比例尺大型比例尺地图的一级精度标准。本正射影像采用密歇根州南州平面坐标系、NAD83基准面及国际英尺单位发布。