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1.发明公开
公开(公告)号：EP4187282A1
公开(公告)日：2023-05-31
申请号：EP22206857.9
申请日：2022-11-11
发明人： MASSIMI, Vincenzo , NITTI, Davide Oscar , NUTRICATO, Raffaele , SAMARELLI, Sergio , FORTELEONI, Marco , VIOLA, Sabrina , ESPOSITO, Anna , MONTESARCHIO, Emilia
摘要： The invention concerns a method (1) to detect deformations of, and/or damages to, structures permanently arranged on the earth's surface. In particular, said method (1) comprises: acquiring (11) georeferencing data indicative of geographical reference positions of predefined points of interest of a given structure to be monitored permanently arranged on the earth's surface, wherein said predefined points of interest are representative of a 3D geometry of the given structure without deformations and damages; acquiring (12) a SAR image of an area of the earth's surface where the given structure is arranged, wherein said SAR image is associated with a given reference coordinate system; transforming (13) the geographical reference positions of the predefined points of interest into corresponding expected positions in the given reference coordinate system associated with the acquired SAR image so as to carry out a reprojection of the 3D geometry of the given structure without deformations and damages on the acquired SAR image; identifying (14) in the acquired SAR image the predefined points of interest of the given structure; determining (15) actual positions in the given reference coordinate system associated with the acquired SAR image of the predefined points of interest identified in said SAR image; making a comparison (16) between the expected positions of the predefined points of interest and the corresponding actual positions in the acquired SAR image; and detecting (17) one or more deformations of, and/or one or more damages to, said given structure on the basis of the comparison made.
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2.发明公开
公开(公告)号：EP4361678A1
公开(公告)日：2024-05-01
申请号：EP22204034.7
申请日：2022-10-27
CPC分类号： G01S13/9023 , G01S7/295
摘要： A system and a relative method for determining the north/south, east/west and up/down components (1) of the displacement of persistent scatterers (21) comprising an arithmetic device that is configured to execute: processing of importing displacement time series data (2) derived from multi-temporal of satellite SAR data over the persistent scatterers; processing of importing the geographical coordinates data of the persistent scatterers, information data about the persistent scatterers, orbit type data about the persistent scatterers, orbit parameters data about the persistent scatterers; calculating, for each scatterer, a total displacement value (30); grouping (9) the scatterers in a plurality of clusters based on the geographical coordinates; calculating a quantity dependent on the displacement time series for each scatterer; classifying the scatterers based on the orbit type; grouping (10) the ascending/ descending scatterers in a plurality of ascending/ descending subclusters based on the quantity value; calculating a geometrical distance between the centroid of each ascending subcluster and the centroid of each descending subcluster, thus obtaining a set of geometrical distance values for each subclusters; classifying the subclusters based on the set of geometrical distance values in isolated and coupled subcluster, depending on all values of the set of geometrical distance values are below or above a fixed threshold; identifying (11), for each coupled ascending subcluster, the descending subcluster having the minimum geometrical distance from the coupled descending subcluster, thus defining a couple of two associated subclusters; calculating, for each coupled subcluster, an average total displacement and an average incidence angle, calculating (12) the north/south, east/west and up/down components (1) of each scatterer of each subcluster using information from the subcluster of the opposite type if the subcluster is coupled.
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3.发明公开
公开(公告)号：EP4113158A1
公开(公告)日：2023-01-04
申请号：EP22179844.0
申请日：2022-06-20
摘要： A system and relative method for determining the priority of inspection of environmental and man-made objects on the earth's surface, the system, comprising an arithmetic device that is configured to execute: processing of importing displacement measurement data derived from multi-temporal interferometry measurements of satellite SAR data over the objects to be monitored; processing of importing at least one information data record about the objects; processing of subdividing the objects into a plurality of elementary units (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4"), each of said unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4") comprising a plurality of persistent scatterers and/or distributed scatterers; calculating at least a quantity dependent on the displacement for each selected scatterer; calculating, for each unit (1, 1', 1", 2, 2', 2", 3, 3', 3", 4, 4', 4") the absolute value of the difference between the quantity value of each selected scatterer inside the unit (1, 1', 1", 2, 2', 2", 3, 3', 3", 4, 4', 4") and the quantity mean of each unit (1, 1', 1", 2, 2', 2", 3, 3', 3", 4, 4', 4"), so as to obtain a quantity difference value for each selected scatterer; selecting the selected scatterers having the quantity difference value higher than a fixed threshold, thus obtaining a set of subselected scatterers for each elementary unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4"); dividing the mean of the quantity difference values of each unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4") by the maximum of the differences, thus obtaining a quantity difference ratio; dividing the quantity mean of each unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4 ") by the quantity mean maximum, thus obtaining a quantity ratio; summing the quantity ratio and the quantity difference ratio, thus obtaining a score for each elementary unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4"); processing of determining the priority of inspection of each unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4") based on the score; and processing of displaying information on the score of each unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4") and/or a result of the determining of the priority of inspection on an output device.
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4.发明公开
公开(公告)号：EP4113167A1
公开(公告)日：2023-01-04
申请号：EP21181986.7
申请日：2021-06-28
摘要： A system and relative method for determining the priority of inspection of environmental and man-made objects on the earth's surface, the system, comprising an arithmetic device that is configured to execute: processing of importing displacement measurement data derived from multi-temporal interferometry measurements of satellite SAR data over the objects to be monitored; processing of importing at least one information data record about the objects; processing of subdividing the objects into a plurality of elementary units (1,1',1",2,2',2",3,3",3", 4,4',4"), each of said unit (1,1',1",2,2',2",3,3",3",4,4',4") comprising a plurality of persistent scatterers and/or distributed scatterers; calculating at least a quantity dependent on the displacement for each selected scatterer; calculating, for each unit (1, 1',1", 2, 2', 2", 3, 3", 3", 4, 4', 4"), the difference between the quantity value of each selected scatterer inside the unit (1,1',1",2,2',2",3,3",3",4,4',4") and a quantity mean of the unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4"), so as to obtain a quantity difference value for each selected scatterer; dividing the mean of the quantity difference values of each unit (1,1',1",2,2', 2", 3,3", 3", 4,4', 4") by the maximum of the differences, thus obtaining a quantity difference ratio; dividing the quantity mean of each unit (1,1',1",2,2',2",3,3",3",4,4',4") by the quantity mean maximum, thus obtaining a quantity ratio; summing the quantity ratio and the quantity difference ratio, thus obtaining a score for each elementary unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4,4', 4"); processing of determining the priority of inspection of each unit (1,1',1", 2,2', 2", 3,3", 3", 4,4', 4") based on the score; and processing of displaying information on the score of each unit (1, 1', 1", 2, 2', 2", 3, 3", 3", 4, 4', 4") and/or a result of the determining of the priority of inspection on an output device.
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