-
1.发明公开A METHOD AND A SYSTEM FOR BUILDING A THREE-DIMENSIONAL MODEL FROM SATELLITE IMAGES 有权Verfahren und System zum Bilden eines dreidimensionalen Modells aus Satellitenbildern公开(公告)号：EP3002552A1
公开(公告)日：2016-04-06
申请号：EP15195821.2
申请日：2014-04-24
Applicant: Vricon Systems AB
Inventor： HAGLUND, Leif , NYGREN, Ola , ISAKSSON, Folke , BORG, Johan
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: 本发明涉及一种用于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图像进行捆绑调整，并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该部分感兴趣区域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关系。 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。
-
2.发明授权A METHOD AND A SYSTEM FOR BUILDING A THREE-DIMENSIONAL MODEL FROM SATELLITE IMAGES 有权一种从卫星图像构建三维模型的方法和系统
公开(公告)号：EP3002552B1
公开(公告)日：2017-06-14
申请号：EP15195821.2
申请日：2014-04-24
Applicant: Vricon Systems AB
Inventor： HAGLUND, Leif , NYGREN, Ola , ISAKSSON, Folke , BORG, Johan
CPC classification number: G06T17/05 , G01C11/06 , G06T7/55 , G06T7/593 , G06T15/04 , G06T19/20 , G06T2207/10032 , G06T2207/30181 , G09B25/00
-
公开(公告)号：EP2987145A1
公开(公告)日：2016-02-24
申请号：EP13882584.9
申请日：2013-04-19
Applicant: Saab Vricon Systems AB
Inventor： BEJERYD, Johan , BORG, Johan , ISAKSSON, Folke , HAGLUND, Leif , CARLBOM, Per , NYGREN, Ola , ANDERSSON, Ingmar
CPC classification number: G01C11/12 , G06T7/55 , G06T17/05 , G06T2207/10016 , G06T2207/10032
Abstract: The invention relates to a method for analysing 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, where the at least three provided images are provided from at least three different angles,establishing point correspondence between the at least three provided images,generating at least two sets of three-dimensional information based on the at least three 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. The invention also relates to a method for image correction, a system, a computer program and a computer program product.
