The Gee protocol provides viewing of high-resolution satellite imagery and regular maps provided by services such as Google Earth, Google Maps, Bing Maps, DigitalGlobe, Kosmosnimki, Yandex.Maps, etc. Yahoo Maps, VirtualEarth, Gurtam, OpenStreetMap, eAtlas, iPhone Maps. Provide global satellite image data from 1984 to 2022, and can develop a large number of AI recognition applications. By analyzing Google's GEE protocol, it is found that the key to the problem lies in the data analysis in flatfile?db=tm&f1-02000123-i.19-fa99b
Quadtree (QuadTree, q-tree, q-tree) - a set of references to existing tiles QTREE structure analysis
buf<<children 1字节 位段(bitfield)用于识别节点图像类型
<<kByteFiller 1字节 占位
<<cnode_version 2字节 节点版本
<<image_version 2字节 影像版本
<<terrain_version 2字节 地形版本
<<num_channels 2字节
<<kWordFiller 2字节 占位
<<type_offset 4字节
<<version_offset 4字节
<<image_neighbors 8字节
<<image_data_provider 1字节
<<terrain_data_provider 1字节
<< kWordFiller 2字节After solving these two problems, you can quickly browse the global hydrology, greening, fire, etc. through Ovi [ov], and develop many big data applications for the earth's environment through AI!
OV fast import channel: 1 second import
The screenshot part is as follows
