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    • 8. 发明授权
    • Inter-vehicle distance detecting device for automatic tracking of a
preceding car
    • 用于自动跟踪前置车的车辆间距检测装置
    • US5216408A
    • 1993-06-01
    • US700990
    • 1991-05-16
    • Hiroyuki Shirakawa
    • Hiroyuki Shirakawa
    • G01C3/06G01S11/12H04N7/18
    • G01S11/12B60G2400/823B60G2401/142B60G2800/166
    • An inter-vihicle distance detecting device for automatic tracking of a foregoing car which comprises: image sensors for taking images of a foregoing car; displaying means for displaying one of the images of the foregoing car being taken by the image sensors; an image taking window which repeats forward and backward movement horizontally from an end to the other end of a display of the displaying means at a predetermined speed; an image tracking starting switch being operable by a driver; image tracking means for tracking the image of the foregoing car, activated by the image tracking starting switch when the image of the foregoing car enters in the image taking window; and detecting means for detecting an inter-vehicle distance between a car of the driver and the foregoing car being displayed on the image taking window.
    • 一种用于自动跟踪前述轿厢的行星体距离检测装置,包括:用于拍摄前述轿厢的图像的图像传感器; 用于显示由图像传感器拍摄的前述轿厢的图像之一的显示装置; 图像采集窗口,其以预定速度从显​​示装置的显示器的端部向另一端水平地重复前后移动; 图像跟踪启动开关可由驾驶员操作; 图像跟踪装置,用于跟踪前述轿厢的图像,当前述轿厢的图像进入图像拍摄窗口时,由图像跟踪开始开关激活; 以及检测装置,用于检测在图像拍摄窗口上显示的驾驶员的轿厢和前述轿厢之间的车辆间距离。
    • 10. 发明公开
    • An inter-vehicle distance detecting device
    • Vorrichtung zum Bestimmen des Abstandes zwischen Fahrzeugen。
    • EP0567013A1
    • 1993-10-27
    • EP93106231.9
    • 1993-04-16
    • MITSUBISHI DENKI KABUSHIKI KAISHA
    • Karasudani, Keiko, c/o Mitsubishi Denki K.K.
    • G01S11/12
    • G01S11/12B60G2400/823B60G2401/142B60G2800/166
    • An inter-vehicle distance detecting device wherein top and bottom image signals focused on top and bottom image sensors substantially by a pair of top and bottom optical systems (1,2), are compared and distances from a driving vehicle to preceding vehicles (5) are measured by detecting deviation between the top and bottom images under a principle of trigonometry comprises a display means for displaying the images of the preceding vehicles taken by either one of the top and bottom image sensors (3,4); an image-tracking means (12) for setting a tracking window surrounding one of the images of the preceding vehicles and image-tracking the one of the images of the preceding vehicles by the tracking window; a first distance detecting means for calculating the distance from the driving vehicle to the one of the preceding vehicles by detecting the deviation between the corresponding top and bottom images wherein an image signal of the one of the preceding vehicles is a reference signal; a shadow window setting means for setting a plurality of shadow windows which are not displayed on a display image plane (11) and which are totally different from the tracking window, at predetermined positions in the image taken by one of the top and bottom image sensors (3,4); a second distance detecting means for detecting distances from the driving vehicle to objects caught by the respective shadow windows by detecting the deviation between top and bottom corresponding image signals wherein image signals in the shadow windows are reference signals; a symmetry determining means for reading image signals in an arbitrary domain in the shadow windows and surroundings thereof and determining horizontal symmetry in the arbitrary domain; a detecting means for detecting a cut-in vehicle or lane change of the one of the preceding vehicles which is image-tracked by predicting movements of the preceding vehicles in front of the driving vehicle based on a distance information on the distances from the driving vehicle to the objects in the shadow windows caught by the second distance detecting means, an output of the symmetry determining means and an information provided by a calculation result of the image-tracking means on the one of the preceding vehicles which is image-tracked by the tracking window.
    • 一种车辆间距离检测装置,其中基本上由一对顶部和底部光学系统(1,2)基本上聚焦在顶部和底部图像传感器上的顶部和底部图像信号被比较,并且从驾驶车辆到前一车辆(5)的距离, 通过在三角学原理下检测顶部和底部图像之间的偏差来测量包括用于显示由顶部和底部图像传感器(3,4)中的任一个拍摄的前一个车辆的图像的显示装置; 用于设置围绕前方车辆的图像之一的跟踪窗口的图像跟踪装置(12),并且通过跟踪窗口对前述车辆的图像之一进行图像跟踪; 第一距离检测装置,用于通过检测对应的顶部和底部图像之间的偏差来计算从行驶车辆到前一车辆之间的距离,其中前一车辆之一的图像信号是参考信号; 阴影窗口设定装置,用于设置在显示图像平面(11)上不显示并且与跟踪窗口完全不同的多个阴影窗口,在由顶部和底部图像传感器中的一个拍摄的图像中的预定位置 (3,4); 第二距离检测装置,用于通过检测在阴影窗口中的图像信号是参考信号的顶部和底部相应图像信号之间的偏差来检测从驾驶车辆到各个阴影窗口捕获的物体的距离; 用于读取阴影窗口及其周围的任意区域中的图像信号并确定任意域中的水平对称的对称性确定装置; 检测装置,用于根据与驾驶车辆的距离的距离信息,通过预测驾驶车辆前方的前方车辆的移动来检测前一车辆中的一个车辆的车辆或车道变化, 对由第二距离检测装置捕获的阴影窗口中的物体,对称性确定装置的输出和由图像跟踪装置的计算结果提供的信息在由 跟踪窗口。