Orthophoto of the Czech Republic - Jaroměř 3-8
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位色彩分级的捷克共和国数字化无缝正射影像(orthophoto)。Ortofota ČR栅格影像的单个像元,对应地形中平面的地面覆盖范围分别为:东带(East band)0.200米,西带(West zone)0.125米。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衡量指标;2019至2020年间,该误差区间为0.20至0.21米。2021年捷克正射影像的精度评估工作尚未完成。Ortofota ČR以SM 5分幅为分发单元,每个分幅对应地面2.5×2千米的范围,数据以JPG图形栅格格式进行存储与分发。



