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公开(公告)号：US08872918B2
公开(公告)日：2014-10-28
申请号：US12990567
申请日：2009-04-27
申请人： Dieter Krökel
发明人： Dieter Krökel
CPC分类号： H04N5/2353 , B60R2300/105
摘要： A method for exposure control for a camera system in a motor vehicle is provided. The camera system records a sequence of images of the surroundings of the vehicle using an optimal exposure time. The optimal exposure time is predetermined depending on the brightness of the surroundings or on the brightness of individual objects in the image. If the optimal exposure time is longer than a predetermined threshold value, at least one intermediate image is recorded using a short predetermined exposure time, i.e. an exposure time shorter than the optimal exposure time. At least two driver assistance functions are executed on the basis of the image data of the camera system. The image data recorded using the optimal exposure time is used for a first driver assistance system and the image data recorded using the short exposure time is used for a second driver assistance system.
摘要翻译： 提供了一种用于机动车辆中的照相机系统的曝光控制的方法。 相机系统使用最佳曝光时间记录车辆周围环境的一系列图像。 最佳曝光时间根据周围环境的亮度或图像中各个物体的亮度而预先确定。 如果最佳曝光时间长于预定阈值，则使用短的预定曝光时间即短于最佳曝光时间的曝光时间来记录至少一个中间图像。 基于相机系统的图像数据执行至少两个驾驶员辅助功能。 使用最佳曝光时间记录的图像数据用于第一驾驶员辅助系统，并且使用短曝光时间记录的图像数据用于第二驾驶员辅助系统。
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2.发明授权公开(公告)号：US08391558B2
公开(公告)日：2013-03-05
申请号：US12739477
申请日：2008-10-16
CPC分类号： B60Q1/1423 , B60Q2300/41 , B60Q2300/42 , G06K9/00825
摘要： A method for determining at least one threshold value S for distinguishing, in the dark, between reflectors and vehicle lights that are recorded as light spots by a camera sensor oriented towards the surroundings of a vehicle. The camera sensor records a series of images of the surroundings of the vehicle. At least one light spot in the series of images is tracked. When the tracking of a light spot is completed, at least one parameter (for example the maximum intensity Imax of the light spot in the entire series of images, or the lifetime τ of the light spot) is determined from measured values, for example from the intensity of the light spot in each image. The threshold value S is then adapted to the determined parameter/s. The determined parameter value of the light spot is included in a frequency distribution of the parameter values from previously tracked light spots. A new threshold value for distinguishing between vehicle lights and reflectors is determined from the updated frequency distribution of the parameter values. After temporal filtering a new threshold value for distinguishing between reflectors and vehicle lights is fixed.
摘要翻译： 一种确定至少一个阈值S的方法，用于在黑暗中区分由面向车辆周围的相机传感器记录为光点的反射器和车辆灯之间。 相机传感器记录车辆周围的一系列图像。 跟踪系列图像中的至少一个光点。 当光点的跟踪完成时，从测量值确定至少一个参数（例如整个图像系列中的光点的最大强度Imax或光斑的寿命τ），例如从 每个图像中光斑的强度。 然后将阈值S适应于所确定的参数。 所确定的光点的参数值被包括在来自先前跟踪的光点的参数值的频率分布中。 根据参数值的更新频率分布确定用于区分车辆灯和反射器的新阈值。 在时间滤波之后，固定了用于区分反射器和车辆灯的新阈值。
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3.发明申请公开(公告)号：US20100316258A1
公开(公告)日：2010-12-16
申请号：US12739477
申请日：2008-10-16
IPC分类号： G06K9/00
CPC分类号： B60Q1/1423 , B60Q2300/41 , B60Q2300/42 , G06K9/00825
摘要： A method for determining at least one threshold value S for distinguishing, in the dark, between reflectors and vehicle lights that are recorded as light spots by a camera sensor oriented towards the surroundings of a vehicle. The camera sensor records a series of images of the surroundings of the vehicle. At least one light spot in the series of images is tracked. When the tracking of a light spot is completed, at least one parameter (for example the maximum intensity Imax of the light spot in the entire series of images, or the lifetime τ of the light spot) is determined from measured values, for example from the intensity of the light spot in each image. The threshold value S is then adapted to the determined parameter/s. The determined parameter value of the light spot is included in a frequency distribution of the parameter values from previously tracked light spots. A new threshold value for distinguishing between vehicle lights and reflectors is determined from the updated frequency distribution of the parameter values. After temporal filtering a new threshold value for distinguishing between reflectors and vehicle lights is fixed.
摘要翻译： 一种确定至少一个阈值S的方法，用于在黑暗中区分由面向车辆周围的相机传感器记录为光点的反射器和车辆灯之间。 相机传感器记录车辆周围的一系列图像。 跟踪系列图像中的至少一个光点。 当光点的跟踪完成时，从测量值确定至少一个参数（例如整个图像系列中的光点的最大强度Imax或光斑的寿命τ），例如从 每个图像中光斑的强度。 然后将阈值S适应于所确定的参数。 所确定的光点的参数值被包括在来自先前跟踪的光点的参数值的频率分布中。 根据参数值的更新频率分布确定用于区分车辆灯和反射器的新阈值。 在时间滤波之后，固定了用于区分反射器和车辆灯的新阈值。
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公开(公告)号：US20150035980A1
公开(公告)日：2015-02-05
申请号：US14128693
申请日：2012-07-02
申请人： Dieter Krökel
发明人： Dieter Krökel
CPC分类号： B60R1/00 , B60R2300/804 , B60R2300/8053 , G01N21/21 , G01N2021/1772 , G01N2021/1776 , G06K9/00791 , H01L27/14621 , H04N9/045
摘要： The invention relates to an image capturing device comprising an image sensor. A first polarizing filter is arranged in at least one first subarea in front of the image sensor while a second polarizing filter is arranged in at least one second subarea. The polarizing filters have different directions of polarization (h;v). The image capturing device of the invention comprises an evaluation unit which is able to detect the presence of polarized light by comparing the intensities of the at least two subareas that are polarized differently. In other words, the intensity in the subarea of the image sensor which receives electromagnetic radiation that has passed through the first polarizing filter is compared with the intensity in the subarea of the image sensor which receives electromagnetic radiation that has passed through the second polarizing filter.
摘要翻译： 本发明涉及包括图像传感器的图像捕获装置。 第一偏振滤光器布置在图像传感器前面的至少一个第一子区域中，而第二偏振滤光器布置在至少一个第二子区域中。 偏振滤光片具有不同的极化方向（h; v）。 本发明的图像捕获装置包括评估单元，其能够通过比较不同的极化的至少两个子区域的强度来检测偏振光的存在。 换句话说，将接收通过第一偏振滤光器的电磁辐射的图像传感器的子区域的强度与接收通过第二偏振滤光器的电磁辐射的图像传感器的子区域的强度进行比较。
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公开(公告)号：US08140214B2
公开(公告)日：2012-03-20
申请号：US11792981
申请日：2005-11-16
IPC分类号： G01P3/38
摘要： The invention relates to a method for determining a speed of a vehicle (1), whereby at least two images (A, B) of an area surrounding the vehicle are recorded in time succession using a camera on the vehicle (1), and between the images (A, B) changes (2) in a position and/or a size of at least one object (X) contained in the images (X) are determined, and from the changes, a speed of the vehicle (1) is determined relative to the object (X).
摘要翻译： 本发明涉及一种用于确定车辆（1）的速度的方法，由此使用车辆（1）上的相机以及在车辆（1）之间的时间序列中记录周围车辆的区域的至少两个图像（A，B） 确定在图像（X）中包含的至少一个物体（X）的位置和/或大小的图像（A，B）改变（2），并且根据改变，车辆（1）的速度， 相对于物体（X）确定。
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