Independence 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>本元数据记录描述的是由桑伯恩地图公司（Sanborn Map Company）为密歇根州奥克兰县（Oakland County, MI）制作的0.25英尺像素分辨率数字正射影像数据集。本次提供的正射影像包含4波段（红、绿、蓝、近红外（NIR）），单像素位深度为8比特，交付格式涵盖未压缩的TIFF/TFW格式，以及压缩比20:1的第三代（Gen3）3波段（红、绿、蓝）MrSID镶嵌影像。该数据于2025年4月27日至5月12日期间航拍获取，飞行高度为15700英尺（平均海平面高度，AMSL），搭载UltraCam Osprey M3相机完成拍摄，符合美国摄影测量与遥感学会（ASPRS）1类大比例尺地图精度标准，对应制图比例为1英寸=50英尺。本正射影像采用密歇根州南部州平面坐标系、北美大地基准1983（NAD83）及国际英尺单位发布。