基于点云数据的树冠体积自动求算方法
王祺;胡洪;吴艳兰;亢瑞红;许邦鑫;梁泽毓
【期刊名称】《西北林学院学报》 【年(卷),期】2017(032)002
【摘要】Tree crown volume is an important parameter in the study of biomass and 3D green biomass.In view of the problems such as the complexity of the tree crown topology structure,the poor accuracy and low degree of automation in the existing method,this paper presented an automatic extraction measurement of the tree crown volume method with laser point cloud data.Based on the tree point cloud data,the automatic calculation was achieved by using the sector area approximation and the irregular slice segmentation algorithm.Sample trees in the experimentation area were measured and calculated.The new method achieved the nondestructive automatic calculation of the single tree crown volume.Compared with the traditional method,it not only saved manpower,but also improved the accuracy of the calculation by 6.17％.Also it had a certain practical significance and application value,which could provide reference for the research of crown structure.%树冠体积是生物量、三维绿量测算的重要参数.针对树冠拓扑结构复杂,现有方法提取精度差、自动化程度低的问题,提出一种利用激光点云数据自动获取树冠体积的新方法.以树木点云数据为基础,运用扇形面积逼近和不规则体切片分割累加算法,实现树冠体积的自动计算.对试验区树木进行测量计算,并与传统方法、基
基于点云数据的树冠体积自动求算方法
