Orthophoto of the Czech Republic - Ústí nad Labem 5-7
收藏资源简介:
Digital seemingly seamless orthophoto of the Czech Republic in a 8-bit color scale. The pixel of the raster image Ortofota ČR displays 0.200 m (band „East), resp. 0.125 m ("West" zone) of the area in the middle plane of the terrain. The orthophoto of the Czech Republic is constantly improving its positional accuracy characterized by a mean positional error, this error ranged from 0.20 to 0.21 m in the years 2019 - 2020. The evaluation of the accuracy of the orthophoto of the Czech Republic in 2021 has not yet been completed. Orthofoto ČR is distributed in graphic raster formats JPG in dispensing units with a size showing 2.5 x 2 km of terrain in the SM 5 clade.
本数据集为采用8位色彩深度的捷克共和国数字化无缝正射影像(orthophoto)。该栅格影像Ortofota ČR的单个像素,东带对应地形中平面上0.200米的地面范围,西带则对应0.125米的地面范围。捷克正射影像的位置精度持续提升,以平均位置误差作为精度表征指标:2019至2020年期间,该误差值介于0.20至0.21米之间。2021年度捷克正射影像的精度评估工作暂未完成。Orthofoto ČR以JPG图形栅格格式进行分发,其分发单元对应SM 5分幅下2.5×2千米的地形范围。



