林权不动产界址点抽稀算法对比研究

Comparative Research on the Dilution Algorithm of Forest Tenure Real Estate Boundary Sites

林权图斑节点密集、形状千变万化、圆度差异大,界址点设置尤为重要。重要界址点设置作为林权调查成果的基本组成部分,对后期成果整理影响明显。传统手工选点或节点人工抽稀的方式不仅耗费大量人力和时间成本,而且选点成果因人而异,点位位置选取抽象。因此,对比分析了不同点位提取与抽稀算法,针对不同类型图斑选择合适的算法,解决了林权不动产界址点提取问题。

Due to dense graph nodes,ever-changing shape and different roundness,setting boundary sites is very important.As a basic part of the forest tenure survey results,the setting of important boundary sites has a significant impact on the collation of later results.The manual selection of points or nodes artificially diluted not only costs a lot of labor and time,but also the results of point selection vary from person to person,and the selection point position is abstract.In order to solve such problems,we compared several point extraction and dilution algorithms,and selected the appropriate algorithm for different types of graphs.