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    • 9. 发明申请
    • ROAD VERTICAL CONTOUR DETECTION USING A STABILIZED COORDINATE FRAME
    • 采用稳定坐标系进行道路垂直轮廓检测
    • WO2016135736A2
    • 2016-09-01
    • PCT/IL2016/050224
    • 2016-02-28
    • MOBILEYE VISION TECHNOLOGIES LTD.
    • BLUMENTHAL, ItayKINGSLEY, YaakovSHAAG, NadavSTEIN, Gideon
    • G06K9/00
    • G06K9/00791G06K9/4604G06K9/52G06T5/006G06T7/13G06T7/20G06T7/40G06T7/60G06T7/74G06T2207/30252H04N7/18
    • 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.
    • 在一些实施例中,从道路的两个图像创建的第一单应矩阵被分解以确定自我运动,并且自我运动被用于调整道路平面的先前估计。 调整后的道路平面的先前估计值与当前的平面估计值相结合以创建第二单应矩阵,第二单应矩阵用于确定道路表面的残余运动和垂直偏差。 在一些实施例中,通过优化具有数据项,平滑项和正则化项的函数来调整每个对应于道路的公共部分的多个道路轮廓的斜率和偏移量; 并将调整后的道路轮廓组合成多帧道路轮廓。 在一些实施例中,预定数量的数据点的道路分布信息以周期性数据脉冲串传输,每个数据脉冲串具有多于一个的数据点。