Orthophoto of the Czech Republic - Liberec 4-3
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.
捷克共和国数字化无缝正射影像采用8位色彩深度。Ortofota ČR(捷克正射影像)的栅格图像像素,在地形中平面范围内,东带(East band)对应0.200米的地面覆盖尺寸,西带(West zone)对应0.125米的地面覆盖尺寸。捷克正射影像的位置精度持续提升,其精度以平均位置误差作为表征指标;2019至2020年间,该误差的取值区间为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。捷克正射影像以JPG图形栅格格式进行分发,其分发单元采用SM 5类别下的规格,对应地面覆盖范围为2.5×2千米。



