ROAD VERTICAL CONTOUR DETECTION USING A STABILIZED COORDINATE FRAME
    5.
    发明公开
    ROAD VERTICAL CONTOUR DETECTION USING A STABILIZED COORDINATE FRAME 审中-公开
    采用稳定坐标系进行道路垂直轮廓检测

    公开(公告)号:EP3262566A2

    公开(公告)日:2018-01-03

    申请号:EP16717712.0

    申请日:2016-02-28

    IPC分类号: G06K9/00

    摘要: In some embodiments, a first homography, created from two images of a roadway, is decomposed to determine an ego-motion, and the ego-motion is used to adjust a previous estimate of a road plane. The adjusted previous estimate of the road plane is combined with the current estimate of the plane to create a second homography, and the second homography is used to determine residual motion and vertical deviation in the surface of the roadway. In some embodiments, multiple road profiles each corresponding to a common portion of a roadway are adjusted in slope and offset by optimizing a function having a data term, a smoothness term and a regularization term; and the adjusted road profiles are combined into a multi-frame road profile. In some embodiments, road profile information for a predetermined number of data points is transmitted in periodic data bursts, with more than one data point per data burst.

    ROAD VERTICAL CONTOUR DETECTION USING A STABILIZED COORDINATE FRAME

    公开(公告)号:EP4202863A1

    公开(公告)日:2023-06-28

    申请号:EP23153914.9

    申请日:2016-02-28

    IPC分类号: G06V20/56

    摘要: In some embodiments, a first homography, created from two images of a roadway, is decomposed to determine an ego-motion, and the ego-motion is used to adjust a previous estimate of a road plane. The adjusted previous estimate of the road plane is combined with the current estimate of the plane to create a second homography, and the second homography is used to determine residual motion and vertical deviation in the surface of the roadway. In some embodiments, multiple road profiles each corresponding to a common portion of a roadway are adjusted in slope and offset by optimizing a function having a data term, a smoothness term and a regularization term; and the adjusted road profiles are combined into a multi-frame road profile. In some embodiments, road profile information for a predetermined number of data points is transmitted in periodic data bursts, with more than one data point per data burst.