DISPOSITIF DE MESURE DE DISTANCE DE VISIBILITE
    1.
    发明公开
    DISPOSITIF DE MESURE DE DISTANCE DE VISIBILITE 有权
    用于测量视力

    公开(公告)号:EP1802960A1

    公开(公告)日:2007-07-04

    申请号:EP05815854.4

    申请日:2005-10-19

    IPC分类号: G01N21/53 G01S17/95

    摘要: The invention relates to a device for determining a landscape sight distance comprising a camera (12) for photographing said landscape picture, means (16) for recording said picture, means (16) for assigning a representative information of a distance between the landscape point corresponding to the pixel and the camera to each picture pixel, thereby obtaining a distance map, means (20, 22, 24) for processing the picture in such a way that it is possible to detect the picture pixel whose contrast is greater by a predetermined value than at least certain adjacent pixels, means (20, 22, 24) for successively applying said detection processing to the picture pixels beginning from a pixel corresponding to a larger distance to a first pixel which is detected as satisfying the contrast condition and means (20, 22, 24) for assigning distance information to said pixel from the distance map.

    DISPOSITIF DE MESURE DE DISTANCE DE VISIBILITE
    4.
    发明授权
    DISPOSITIF DE MESURE DE DISTANCE DE VISIBILITE 有权
    用于测量视力

    公开(公告)号:EP1802960B1

    公开(公告)日:2011-07-06

    申请号:EP05815854.4

    申请日:2005-10-19

    IPC分类号: G01N21/53 G01S17/95

    摘要: The invention relates to a device for determining a landscape sight distance comprising a camera (12) for photographing said landscape picture, means (16) for recording said picture, means (16) for assigning a representative information of a distance between the landscape point corresponding to the pixel and the camera to each picture pixel, thereby obtaining a distance map, means (20, 22, 24) for processing the picture in such a way that it is possible to detect the picture pixel whose contrast is greater by a predetermined value than at least certain adjacent pixels, means (20, 22, 24) for successively applying said detection processing to the picture pixels beginning from a pixel corresponding to a larger distance to a first pixel which is detected as satisfying the contrast condition and means (20, 22, 24) for assigning distance information to said pixel from the distance map.