IN2012DN00449A - - Google Patents

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Publication number
IN2012DN00449A
IN2012DN00449A IN449DEN2012A IN2012DN00449A IN 2012DN00449 A IN2012DN00449 A IN 2012DN00449A IN 449DEN2012 A IN449DEN2012 A IN 449DEN2012A IN 2012DN00449 A IN2012DN00449 A IN 2012DN00449A
Authority
IN
India
Prior art keywords
values
unknown
phase
vector
common grid
Prior art date
Application number
Inventor
Alessandro Ferretti
Fabrizio Novali
Zan Francesco De
Alessio Rucci
Stefano Tebaldini
Alfio Fumagalli
Original Assignee
Tele Rilevamento Europa T R E S R L
Milano Politecnico
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Tele Rilevamento Europa T R E S R L, Milano Politecnico filed Critical Tele Rilevamento Europa T R E S R L
Publication of IN2012DN00449A publication Critical patent/IN2012DN00449A/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • G01S13/9021—SAR image post-processing techniques
    • G01S13/9023—SAR image post-processing techniques combined with interferometric techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • G01S13/904—SAR modes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10032—Satellite or aerial image; Remote sensing
    • G06T2207/10044—Radar image

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

A process for filtering interferograms obtained from SAR images, acquired on the same area by synthetic aperture radars, comprising the following steps: a) acquiring a series of N radar images (ALAN) by means of a SAR sensor on a same area with acquisition geometries such as to allow re¬sampling of the data on a common grid; b) after re-sampling on a common grid, selecting a pixel from the common grid; c) calculating the coherence matrix of the selected pixel, that is estimating the complex coherence values for each possible pair of available images; d) maximizing, with respect of the source vector 6, here an unknown element, the functional: being R the operator which extracts the real part of a complex number, γnm the modulus of the element (n, m) of the coherence matrix, k a positive real number, Φnm the phase of the element (n,m) of the coherence matrix, θn and θm the elements n and m of the unknown vector θ. Given that only phase differences appear in the functional T, the values of the unknown factor are estimated less an additive constant, which can be fixed by setting for example θl=0, and the phase values θn thus obtained constitute the vector of the filtered phase values (Fig. 2)
IN449DEN2012 2009-07-08 2010-07-02 IN2012DN00449A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2009A001210A IT1394733B1 (en) 2009-07-08 2009-07-08 PROCEDURE FOR FILTERING INTERFEROGRAMS GENERATED BY IMAGES ACQUIRED ON THE SAME AREA.
PCT/EP2010/059494 WO2011003836A1 (en) 2009-07-08 2010-07-02 Process for filtering interferograms obtained from sar images acquired on the same area.

Publications (1)

Publication Number Publication Date
IN2012DN00449A true IN2012DN00449A (en) 2015-05-15

Family

ID=41667296

Family Applications (1)

Application Number Title Priority Date Filing Date
IN449DEN2012 IN2012DN00449A (en) 2009-07-08 2010-07-02

Country Status (15)

Country Link
US (1) US8711029B2 (en)
EP (1) EP2452205B1 (en)
JP (1) JP5932643B2 (en)
CN (1) CN102472815B (en)
AU (1) AU2010270339B2 (en)
CA (1) CA2767144C (en)
CY (1) CY1116529T1 (en)
DK (1) DK2452205T3 (en)
ES (1) ES2539586T3 (en)
IN (1) IN2012DN00449A (en)
IT (1) IT1394733B1 (en)
NZ (1) NZ597707A (en)
PL (1) PL2452205T3 (en)
PT (1) PT2452205E (en)
WO (1) WO2011003836A1 (en)

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CN109116354B (en) * 2018-09-03 2022-07-22 北京市测绘设计研究院 A Method for Selecting Amplitude Dispersion PS Points Based on Signal-to-Noise Ratio Weighting
US11754704B2 (en) * 2019-03-29 2023-09-12 Nec Corporation Synthetic-aperture-radar image processing device and image processing method
WO2020240720A1 (en) * 2019-05-29 2020-12-03 日本電気株式会社 Synthetic aperture radar signal processing device and signal processing method
CN110261839B (en) * 2019-07-04 2023-02-28 河海大学 A method for estimating azimuth offset with enhanced spectral diversity based on double samples
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JP7188595B2 (en) * 2019-07-18 2022-12-13 日本電気株式会社 Image processing device and image processing method
ES3013922T3 (en) * 2020-02-17 2025-04-15 Paris Sciences Et Lettres Method for processing insar images to extract ground deformation signals
WO2021186557A1 (en) * 2020-03-17 2021-09-23 日本電気株式会社 Data processing device and data processing method
CN111239736B (en) * 2020-03-19 2022-02-11 中南大学 Method, Apparatus, Equipment and Storage Medium for Surface Elevation Correction Based on Single Baseline
US12399269B2 (en) 2020-03-24 2025-08-26 Nec Corporation Image analyzing device and image analyzing method
CN112052754B (en) * 2020-08-24 2023-05-05 西安电子科技大学 Polarization SAR image ground object classification method based on self-supervision characterization learning
WO2022070243A1 (en) * 2020-09-29 2022-04-07 日本電気株式会社 Image analysis device and image analysis method
US20230377201A1 (en) * 2020-09-29 2023-11-23 Nec Corporation Image analysis device and image analysis method
CN113204023B (en) * 2021-05-10 2022-09-23 中国地质大学（武汉） Dual-polarization phase optimization earth surface deformation monitoring method combining PS target and DS target
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Also Published As

Publication number Publication date
JP2012533051A (en) 2012-12-20
EP2452205A1 (en) 2012-05-16
EP2452205B1 (en) 2015-03-25
CN102472815B (en) 2014-04-23
CA2767144A1 (en) 2011-01-13
CA2767144C (en) 2017-08-08
US8711029B2 (en) 2014-04-29
NZ597707A (en) 2013-11-29
CY1116529T1 (en) 2017-03-15
PL2452205T3 (en) 2015-10-30
CN102472815A (en) 2012-05-23
WO2011003836A1 (en) 2011-01-13
ITMI20091210A1 (en) 2011-01-09
JP5932643B2 (en) 2016-06-08
BR112012000415A2 (en) 2017-06-13
PT2452205E (en) 2015-07-30
AU2010270339A1 (en) 2012-02-02
IT1394733B1 (en) 2012-07-13
AU2010270339B2 (en) 2016-04-14
ES2539586T3 (en) 2015-07-02
US20120019410A1 (en) 2012-01-26
HK1171086A1 (en) 2013-03-15
DK2452205T3 (en) 2015-06-15

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