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    • 4. 发明授权
    • Clear path detection through road modeling
    • 通过道路建模清除路径检测
    • US08699754B2
    • 2014-04-15
    • US12581841
    • 2009-10-19
    • Wende ZhangSanjeev M. Naik
    • Wende ZhangSanjeev M. Naik
    • G06K9/00
    • G06K9/00798B60W2420/42G08G1/165G08G1/166G08G1/167
    • A method for detecting a clear path of travel for a vehicle including fusion of clear path detection by image analysis and road geometry data describing road geometry includes monitoring an image from a camera device on the vehicle, analyzing the image through clear path detection analysis to determine a clear path of travel within the image, monitoring the road geometry data, analyzing the road geometry data to determine an impact of the data to the clear path, modifying the clear path based upon the analysis of the road geometry data, and utilizing the clear path in navigation of the vehicle.
    • 用于检测用于车辆的清晰行驶路径的方法,包括通过图像分析进行清晰路径检测的融合和描述道路几何形状的道路几何数据的方法包括监视来自车辆上的照相机装置的图像,通过清晰路径检测分析来分析图像,以确定 在图像内的清晰的行进路径,监测道路几何数据,分析道路几何数据以确定数据对清晰路径的影响,基于道路几何数据的分析修改清晰路径,并利用清晰的 车辆导航路径。
    • 5. 发明授权
    • Pixel-based texture-rich clear path detection
    • 基于像素的纹理丰富的清晰路径检测
    • US08452053B2
    • 2013-05-28
    • US12474577
    • 2009-05-29
    • Wende ZhangSanjeev M. Naik
    • Wende ZhangSanjeev M. Naik
    • G06K9/00
    • G06K9/6211G06K9/00798G08G1/165G08G1/166
    • A method for detecting a clear path of travel for a vehicle utilizing analysis of a plurality of images generated by a camera device located upon the vehicle includes monitoring the images wherein each image comprises a plurality of pixels, identifying a set of interest points from the plurality of pixels in a current image, finding their corresponding points in a preceding image through correspondence matching, filtering the matched pairs of interest points to select a preferential set of matched pairs, generating a three dimensional map of features in the view based upon the preferential set of matched pairs, determining the clear path based upon the mapped features, and utilizing the clear path to operate the vehicle.
    • 利用对位于车辆上的相机装置生成的多个图像的分析来检测用于车辆的清晰行进路径的方法包括监视其中每个图像包括多个像素的图像,从多个像素识别一组感兴趣点 的当前图像中的像素,通过对应匹配找到其在先前图像中的对应点,对匹配的兴趣点对进行滤波以选择优选的匹配对组,基于优先集合生成视图中的特征的三维图 的匹配对,基于映射的特征确定清除路径,以及利用清除路径来操作车辆。
    • 8. 发明申请
    • CAMERA AUTO-CALIBRATION BY HORIZON ESTIMATION
    • 相机自动校准由HORIZON估计
    • US20100201814A1
    • 2010-08-12
    • US12367305
    • 2009-02-06
    • Wende ZhangSanjeev M. Naik
    • Wende ZhangSanjeev M. Naik
    • H04N7/18G06K9/00
    • G06K9/4647G06T7/73G06T2207/10016G06T2207/20068G06T2207/30256
    • A method for estimating the horizon in an image of a camera to provide camera auto-calibration in the pitch direction. The method includes taking an image of a scene and generating a texture map of the image using horizontal edge detection analysis to locate horizontal edges in the scene. The method also includes providing a motion map by providing image differencing between subsequent images to find areas in the scene with no motion while the vehicle is moving. The texture map and the motion map are combined to identify the areas in the image that do not move and contain horizontal edges. A horizontal projection is generated from the combined map by counting white dots in the map in the horizontal direction. The horizontal projection is smoothed to eliminate noise and the location of the horizon is estimated in the image by identifying the maximum peak in the horizontal projection.
    • 一种用于估计相机图像中的水平线以在俯仰方向上提供相机自动校准的方法。 该方法包括拍摄场景的图像并使用水平边缘检测分析生成图像的纹理图,以定位场景中的水平边缘。 该方法还包括通过在随后的图像之间提供图像差分来提供运动图,以便在车辆运动时无动作地寻找场景中的区域。 组合纹理图和运动图以识别图像中不移动并包含水平边缘的区域。 通过在水平方向上计数地图中的白点,从组合地图生成水平投影。 水平投影被平滑以消除噪声,并且通过识别水平投影中的最大峰值来估计图像中的水平位置。