Geo-referenced image positions of the historical images of the TMA archive

This dataset contains shapefiles with geo-referenced images of the TMA archive. These shapefiles contain a unique image-id and their geometry.It is divided in sat_footprints (geo-referenced directly with satellite images), img_footprints (geo-referenced with neighboring aerial images) and calc_footprints (geo-referenced position is calculated).<br>For each footprint_file an error_vector file is existing as well. Thes give the lines between the center of the geo-referenced images and the center of the previous (approximate) positions.

本数据集包含TMA档案中带有地理参考影像的形状文件（shapefile）。此类形状文件包含唯一影像标识符（image-id）及其几何信息。该数据集分为三类覆盖范围文件：卫星覆盖范围文件（sat_footprints，直接与卫星影像完成地理参考）、邻域航拍影像参考覆盖范围文件（img_footprints，通过邻域航拍影像实现地理参考）以及计算型覆盖范围文件（calc_footprints，其地理参考位置通过计算得到）。针对每一份覆盖范围文件，均配套存在误差向量文件（error_vector file），该文件记录了地理参考影像的中心点与此前（近似）位置中心点之间的连线。