公开(公告)号：US20150243072A1

公开(公告)日：2015-08-27

申请号：US14188454

申请日：2014-02-24

Applicant: SAAB AB

Inventor： Leif Haglund ,  Ola Nygren ,  Folke Isaksson ,  Johan Borg

IPC: G06T17/05 ,  G06T7/00 ,  G06T15/04 ,  G06T19/20

CPC classification number: G06T17/05 ,  G01C11/06 ,  G06T7/55 ,  G06T7/593 ,  G06T15/04 ,  G06T19/20 ,  G06T2207/10032 ,  G06T2207/30181 ,  G09B25/00

Abstract: The invention relates to a method for building a 3D model of an area of interest on the surface of a planet. The method comprises providing a plurality of 2D images from satellites, where each 2D image out of the plurality of 2D images at least partly covers the area of interest. Also, each subarea of the area of interest is covered by at least two images, taken from different angles, out of the plurality of 2D images. Bundle adjustments are performed for the plurality of 2D images and the area of interest is divided into parts. For each part of the area of interest at least one combination and preferably all possible combinations out of two images covering that part of the area of interest are taken. Said two images are taken from the at least two images, taken from at least two different angles, out of the plurality of 2D images. Further, for each part of the area, point matching correspondence is established for a set of points for each such combination of two images. The sets of points are combined if more than one set of points exists. Even further, for each part of the area, a 3D model of said part of the area of interest is built based on the combined set of points. The 3D models from each part of the area of interest are combined to a 3D model of the whole area of interest. The invention also relates to a system, a computer program and a computer program product.

Abstract translation: 本发明涉及一种在行星表面上建立感兴趣区域的3D模型的方法。 该方法包括从卫星提供多个2D图像，其中多个2D图像中的每个2D图像至少部分地覆盖感兴趣的区域。 此外，感兴趣区域的每个子区域由多个2D图像中的不同角度的至少两个图像覆盖。 对多个2D图像执行束调整，并且将感兴趣的区域分成多个部分。 对于感兴趣区域的每个部分至少一个组合，并且优选地采用覆盖感兴趣区域的那部分的两个图像中的所有可能的组合。 从多个2D图像中的至少两个不同的角度取出所述两个图像。 此外，对于该区域的每个部分，针对两个图像的每个这样的组合的一组点建立点匹配对应。 如果存在多个点集合，则组合点组合。 更进一步地，对于该区域的每个部分，基于组合的点来构建所述感兴趣区域的所述部分的3D模型。 来自感兴趣区域的每个部分的3D模型被组合到感兴趣的整个区域的3D模型。 本发明还涉及一种系统，计算机程序和计算机程序产品。

公开(公告)号：US20140314307A1

公开(公告)日：2014-10-23

申请号：US13866203

申请日：2013-04-19

Applicant: SAAB AB

Inventor： Johan Bejeryd ,  Johan Borg ,  Folke Isaksson ,  Leif Haglund ,  Per Carlbom ,  Ola Nygren ,  Ingmar Andersson

IPC: G06T7/00 ,  G06T17/20

CPC classification number: G01C11/34 ,  G06T7/55 ,  G06T7/593 ,  G06T7/80 ,  G06T2207/10032 ,  G06T2207/20088

Abstract: Various embodiments provide a method for analyzing images generated from at least one imaging system on at least one satellite. The method comprises providing at least three images of an area of interest from the at least one imaging system, the provided images being provided from at least three different angles, establishing point correspondence between the provided images, generating at least two sets of three-dimensional information based on the provided images, wherein the at least two sets of three-dimensional information are generated based on at least two different combinations of at least two of the at least three provided images of the area of interest, and comparing the at least two sets of three-dimensional information so as to determine discrepancies and providing information related to the imaging system and/or errors in the images based on the determined discrepancies. Associated systems, computer programs, and computer program products are also provided.

Abstract translation: 各种实施例提供了一种用于分析由至少一个卫星上的至少一个成像系统产生的图像的方法。 该方法包括从至少一个成像系统提供感兴趣区域的至少三个图像，所提供的图像从至少三个不同的角度提供，建立提供的图像之间的点对应，产生至少两组三维 基于所提供的图像的信息，其中基于感兴趣区域的至少三个提供的图像中的至少两个的至少两个不同的组合来生成至少两组三维信息，并且将至少两个 基于所确定的差异来确定三维信息的集合以便确定差异并提供与成像系统相关的信息和/或图像中的错误。 还提供相关系统，计算机程序和计算机程序产品。