Oxford 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>

本元数据记录介绍了由桑伯恩地图公司（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。所提供的正射影像包含4波段（红、绿、蓝、近红外(NIR)），每像素8位，交付格式包括未压缩TIFF/TFW格式，以及压缩比20:1的3波段（红、绿、蓝）MrSID镶嵌数据（Gen3版本）。该数据于2025年4月27日至5月12日期间搭载UltraCam Osprey M3相机航空采集，飞行高度为15700英尺（平均海平面高度(AMSL)），并符合美国摄影测量与遥感学会精度标准（ASPRS）的1级大比例尺地图要求，对应比例尺为1英寸=50英尺。本正射影像采用密歇根州南州平面坐标系、NAD83基准及国际英尺作为单位发布。