Road vertical contour detection
    101.
    发明授权

    公开(公告)号:US09826199B2

    公开(公告)日:2017-11-21

    申请号:US14798575

    申请日:2015-07-14

    Abstract: Various driver assistance systems mountable in a host vehicle and computerized methods for detecting a vertical deviation of a road surface. The driver assistance system includes a camera operatively connectible to a processor. Multiple consecutive image frames are captured from the camera including a first image of the road and a second image of the road. Based on the host vehicle motion, the second image is warped toward the first image to produce thereby a warped second image. Image points of the road in the first image and corresponding image points of the road in the warped second image are tracked. Optical flow is computed between the warped second image to the first image. The optical flow is compared with an optical flow based on a road surface model to produce a residual optical flow. The vertical deviation is computed from the residual optical flow.

    ROAD VERTICAL CONTOUR DETECTION
    109.
    发明申请
    ROAD VERTICAL CONTOUR DETECTION 有权
    道路垂直轮廓检测

    公开(公告)号:US20150317525A1

    公开(公告)日:2015-11-05

    申请号:US14798575

    申请日:2015-07-14

    Abstract: Various driver assistance systems mountable in a host vehicle and computerized methods for detecting a vertical deviation of a road surface. The driver assistance system includes a camera operatively connectible to a processor. Multiple consecutive image frames are captured from the camera including a first image of the road and a second image of the road. Based on the host vehicle motion, the second image is warped toward the first image to produce thereby a warped second image. Image points of the road in the first image and corresponding image points of the road in the warped second image are tracked. Optical flow is computed between the warped second image to the first image. The optical flow is compared with an optical flow based on a road surface model to produce a residual optical flow. The vertical deviation is computed from the residual optical flow.

    Abstract translation: 可安装在主车辆中的各种驾驶员辅助系统和用于检测路面垂直偏差的计算机化方法。 驾驶员辅助系统包括可操作地连接到处理器的照相机。 从相机捕获多个连续的图像帧,包括道路的第一图像和道路的第二图像。 基于主车辆运动,第二图像朝向第一图像翘曲,从而产生翘曲的第二图像。 跟踪第一图像中道路的图像点和扭曲的第二图像中道路的对应图像点。 在翘曲的第二图像与第一图像之间计算光流。 将光流与基于路面模型的光流进行比较以产生残余光流。 从残余光流量计算垂直偏差。

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