公开(公告)号：US20150363645A1

公开(公告)日：2015-12-17

申请号：US14301752

申请日：2014-06-11

Applicant: HERE Global B.V.

Inventor： Xin Chen ,  Andi Zang ,  Xi Zhang

IPC: G06K9/00 ,  G06K9/62 ,  G06T7/00

CPC classification number: G06K9/00637 ,  G06K9/6267 ,  G06T7/50 ,  G06T2207/10004 ,  G06T2207/10032 ,  G06T2207/30184

Abstract: A method, apparatus and computer program product are provided for roof type classification and reconstruction based on two dimensional aerial images. In the context of a method, the method includes receiving a roof image, determining a segmentation of the roof image based on cutting lines associated with roof features and classifying roof segments based on roof features within the segment. The classifying roof segments is based on the roof features correlation to a roof type pattern.

Abstract translation: 提供了一种基于二维航空图像的屋顶类型分类和重建的方法，装置和计算机程序产品。 在方法的上下文中，该方法包括接收屋顶图像，基于与屋顶特征相关联的切割线确定屋顶图像的分割，并基于该段内的屋顶特征对屋顶段进行分类。 分类屋顶段是基于屋顶特征与屋顶类型模式的相关性。

公开(公告)号：US20150006117A1

公开(公告)日：2015-01-01

申请号：US14320167

申请日：2014-06-30

Applicant: HERE Global B.V.

Inventor： Xi Zhang ,  Xin Chen

IPC: G06F17/50

CPC classification number: G06F17/5004 ,  G06F17/5009 ,  G06F17/5018 ,  G06K9/00201

Abstract: Systems, apparatuses, and methods are provided for three-dimensional modeling of building roofs using three-dimensional point cloud data. Point cloud data of a roof of a building is received, and roof data points are selected or extracted from the point cloud data. Semantic type classifications are calculated for each selected roof data point. Roof styles are determined from the semantic type classifications, and a synthetic model of the roof and building is rendered based on the determined roof style.

Abstract translation: 提供了使用三维点云数据对建筑屋顶进行三维建模的系统，装置和方法。 收到建筑物屋顶的点云数据，并从点云数据中选择或提取屋顶数据点。 为每个选定的屋顶数据点计算语义类型分类。 屋顶风格由语义类型分类确定，屋顶和建筑物的合成模型基于确定的屋顶风格进行渲染。