Application of high-resolution aerial downward-looking images in three-dimensional demarcation of forest rights
In the data of forest right stock,a large number of red lines of forest right parcels are covered by each other due to low accuracy,but the parcels are clear,and the ownership is not controversial.It is necessary to solve the problem of mutual capping of such parcels by re-demarcating and re-delineating their red lines.At present,topographic maps,high-definition images,and other working maps used for indoor demarcation have their limitations.They have high requirements for the ability of the masses to read and interpret maps,and the demarcation work is not effective.The terrain-level three-dimensional(3D)real scene model truly simulates the real world,breaks the limitations of the two-dimensional(2D)perspective,and is more friendly to the masses for demarcation.It is more suitable for indoor demarcation and parcel rezoning than topographic maps and high-definition images.By using the existing high-resolution aerial down-looking images in various places to establish a terrain-level 3D real scene model,there is no need to re-airshot,and its economy is good.For the shortcomings of the terrain-level 3D real scene model in practical applications,an effective solution was proposed,which played a positive role in exploring a new model of high-precision and field-free delineation of forest rights.
aerial down-looking imagethree-dimensional(3D)real scene modelforest rights