CHANGE DETECTION DEVICE, CHANGE DETECTION METHOD AND RECORDING MEDIUM
    1.
    发明公开
    CHANGE DETECTION DEVICE, CHANGE DETECTION METHOD AND RECORDING MEDIUM 有权
    ÄNDERUNGSDETEKTIONSVORRICHTUNG,ÄNDERUNGSDETEKTIONSVERFAHRENUND AUFZEICHNUNGSMEDIUM

    公开(公告)号:EP2942637A1

    公开(公告)日:2015-11-11

    申请号:EP15165372.2

    申请日:2015-04-28

    申请人: NEC Corporation

    发明人: MURATA, Minoru

    IPC分类号: G01S7/02 G01S13/90

    摘要: The change detection device (1) of the present invention inputs at least two SAR image sets (501) each holding at least information indicative of a reflection intensity and a phase so as to be associated with each of pixels corresponding to a resolution cell within a field of vision for image capturing including a specific region. The information is generated from observation data formed of four basic polarization pairs, i.e. HH, HV, VH and VV polarization pairs observed by a synthetic aperture radar at generally the same time. The change detection device (1) determines a polarization pair (502) whose reflection intensity is not less than a predetermined value or the highest with respect to each of target pixels by using at least one SAR image set among input SAR image sets, and measures displacement (503) at a spot corresponding to the target pixel based on a determined polarization pair and an input SAR image set.

    摘要翻译: 本发明的改变检测装置(1)输入至少两个SAR图像集合(501),每个SAR图像集合(501)至少保持指示反射强度和相位的信息,以便与对应于内部的分辨率单元的每个像素相关联 包括特定区域的图像捕获视野。 通过合成孔径雷达在大致相同的时间观测到的四个基本极化对,即HH,HV,VH和VV极化对形成的观测数据产生信息。 改变检测装置(1)通过使用输入的SAR图像集合中的至少一个SAR图像来确定反射强度不小于预定值或相对于每个目标像素的极化对(502),并且测量 基于所确定的极化对和输入的SAR图像集,在与目标像素相对应的点处的位移(503)。

    CHANGE DETECTION DEVICE, CHANGE DETECTION METHOD AND RECORDING MEDIUM
    2.
    发明授权
    CHANGE DETECTION DEVICE, CHANGE DETECTION METHOD AND RECORDING MEDIUM 有权
    变化检测装置,变化检测方法和记录介质

    公开(公告)号:EP2942637B1

    公开(公告)日:2017-12-27

    申请号:EP15165372.2

    申请日:2015-04-28

    申请人: NEC Corporation

    发明人: MURATA, Minoru

    IPC分类号: G01S7/02 G01S13/90

    摘要: The change detection device (1) of the present invention inputs at least two SAR image sets (501) each holding at least information indicative of a reflection intensity and a phase so as to be associated with each of pixels corresponding to a resolution cell within a field of vision for image capturing including a specific region. The information is generated from observation data formed of four basic polarization pairs, i.e. HH, HV, VH and VV polarization pairs observed by a synthetic aperture radar at generally the same time. The change detection device (1) determines a polarization pair (502) whose reflection intensity is not less than a predetermined value or the highest with respect to each of target pixels by using at least one SAR image set among input SAR image sets, and measures displacement (503) at a spot corresponding to the target pixel based on a determined polarization pair and an input SAR image set.