First the complete building is spli

First the complete building is split up into these basic structures. This step can be realized fully automatic by the analysis of the given ground plan. Figure 5 shows the automatic decomposition of a complex ground plan into rectangular structures. Each of these rectangles defines one building primitive. Since position, orientation and horizontal extension of each cuboid is already defined by the rectangle, only the height of each cuboid as well as roof type and roof slope have to be determined as remaining parameters of each building primitive. The parameters of the building primitives are estimated by a least squares adjustment which minimizes the distances between the DSM surface and the corresponding points of the building primitive, i.e. the building primitives are fit into the DSM surface. In order to apply the least squares adjustment first the appropriate model has to be selected. Additionally roof regions which do not fit to the selected model have to be excluded from the least squares adjustment to avoid gross errors of the estimated parameters. Both tasks can be solved by a segmentation of the DSM into planar surfaces.

結果 (中文) 1:

第一次完整的建筑是分成了这些基本的结构。通过对给定的地面计划的分析，可以实现这一步完全自动。图 5 显示了一个复杂的地面计划自动分解矩形结构。每个这些矩形 defines 一楼原始。由于位置、 方向和水平扩展的每个长方体已经是由矩形愈合，只有每个长方体，以及屋顶类型和边坡屋顶的高度必须确定作为剩余参数的每个建筑基元。建设基元的参数进行估计最小二乘调整最小化 DSM 表面和原始，即建设基元是 DSM 表面到那里的环境建设的对应点之间的距离。应用最小二乘调整第一个适当的模型已被选中。此外屋顶地区不到所选的模型通常要被排除在最小二乘调整以避免过失误差参数的估计。这两个任务可以通过 DSM 成平面曲面分割解决。

結果 (中文) 3:

首先，完整的建筑被分成了这些基本结构。这一步可以实现完全自动的分析给定的地面计划。图5显示了一个复杂的地面计划的自动分解成矩形结构。这些矩形的fiNES一建筑本原。自位置，取向和每个长方体横向延伸已经去fi内德的矩形，只有每个长方体的高度以及屋顶型和屋面坡度必须确定为每个建筑物的原始剩余参数。的基本参数的最小二乘平差最小的DSM表面和建筑原始的对应点之间的距离的估计，即建筑图元是fiT到DSM的表面。为了应用最小二乘平差fiRST必须选择适当的模型。此外，屋顶的地区不fiT到选定的模型已经被排除在最小二乘估计的参数调整避免严重的错误。这两个任务可以解决由DSM到平面表面的分割。