Spruce beetle training and validation data

Training and validation data are provided in vector format. Each training or validation area comprises two geopackage files, one containing a rectangle defining its extent (_extent.gpkg), and one with all the dead spruce trees (_labels.gpkg). The file list contains metadata for each area, namely the Maxar image name and file (called PART) based on which dead spruce trees were delineated. Delineation was based on the native geolocation information, without applying RPC information.本数据集提供矢量格式的训练与验证数据。每个训练或验证区域包含两个GeoPackage（地理数据包）文件：其一为定义该区域范围的矩形范围文件（_extent.gpkg），其二为包含所有枯云杉标注的标签文件（_labels.gpkg）。 文件列表包含各区域的元数据，即用于勾画枯云杉的Maxar影像名称与对应文件（命名为PART）。本次勾画工作基于原始地理定位信息，未使用RPC（有理多项式系数，Rational Polynomial Coefficient）信息。