Orthophoto of the Czech Republic - Písek 7-7
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.
捷克共和国近乎无缝的数字化8位色彩深度正射影像(orthophoto)。该栅格图像(即捷克正射影像Ortofota ČR)中,东部波段的单个像素对应地形中部平面范围内0.200米的地面面积,西部区域的单个像素则对应0.125米的地面面积。捷克正射影像的位置精度正持续提升,其以平均位置误差作为精度表征指标;2019至2020年间,该误差的取值范围为0.20至0.21米。捷克正射影像2021年的精度评估工作目前尚未完成。Orthofoto ČR采用JPG图形栅格格式进行分发,其分发单元的覆盖范围为2.5×2公里的地面区域,符合SM 5分幅规格。



