公开(公告)号：WO2018061010A1

公开(公告)日：2018-04-05

申请号：PCT/IL2017/051100

申请日：2017-09-28

Applicant: PIXTIER MAPS LTD.

Inventor： COHEN, Iovav ,  OUZANA, Dror

IPC: G06T17/00 ,  G06T17/05 ,  G06T7/00 ,  G06T19/00 ,  G06F7/22 ,  G06F17/50

Abstract: A computerized method comprising using at least one hardware processor for adjusting a digital urban three-dimensional model by receiving a plurality of digital image files, and for each computing initial camera parameters, segmenting each to one of a plurality of map tiles that overlap each other, and for each map tile computing a structure from motion analysis (SFM). The method further comprises, for at least one map tile, computing an alignment transformation based on iteratively computing a discrepancy score of the overlaps between that map tile and the SFM values from surrounding map tiles. The method further comprises, for at least one map tile, generating a transformed SFM data values based on the alignment transformation. The method further comprises, for at least one map tile, computing a three- dimensional (3D) urban model of that map tile based on the transformed SFM values.

Abstract translation: 包括使用至少一个硬件处理器通过接收多个数字图像文件来调整数字城市三维模型，并且对于每个计算初始摄像机参数，将每个计算机化方法分割为以下中的一个： 多个彼此重叠的地图瓦片，并且针对每个地图瓦片从运动分析（SFM）计算结构。 该方法进一步包括，对于至少一个地图瓦片，基于迭代地计算该地图瓦片与来自周围地图瓦片的SFM值之间的重叠的差异分数来计算对齐变换。 该方法还包括，对于至少一个地图瓦片，基于该对齐变换来生成变换的SFM数据值。 该方法进一步包括，对于至少一个地图瓦片，基于经变换的SFM值来计算该地图瓦片的三维（3D）城市模型。