2026 DeKalb Imagery

The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to a DEM. Mosaicking was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible.本数据集由匹克测量国际公司（Pictometry International）采集的天底视角影像生成的分幅正射影像组成。已开展空中三角测量（Automatic aerial triangulation，AAT）作业，将经三角测量处理的影像帧校正至数字高程模型（DEM）。随后采用自动接缝算法完成影像镶嵌，并通过人工编辑尽可能消除凸起地物区域的影像接缝。