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公开(公告)号：US20170353650A1
公开(公告)日：2017-12-07
申请号：US15175248
申请日：2016-06-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： VERONIQUE C. PRINET , CAROLINE CHUNG , WENDE ZHANG
CPC classification number: H04N5/2357 , G06K9/00791 , G06K9/4609 , G06K9/6267 , G06T5/002 , G06T7/11 , G06T7/215 , G06T2207/10016 , G06T2207/20182 , H04N5/2351 , H04N5/2354
Abstract: A method of detecting and correcting flicker. A video stream of a scene at various instances of time is captured by an image capture device. A local spatio-temporal feature extraction technique is applied, by a processor, to regions of the capture scene within each frame. Candidate flickering region detection is applied, by a classifier, to identify candidate regions. Corresponding candidate regions are tracked over time to detect illumination differences within each analyzed region. An illumination correction technique is applied to the candidate regions where flickering is detected. A flicker-free video is output on a display device.
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2.发明申请SYSTEM AND METHOD FOR PROVIDING TARGET THREAT ASSESSMENT IN A COLLISION AVOIDANCE SYSTEM ON A VEHICLE 有权在车辆碰撞避免系统中提供目标威胁评估的系统和方法公开(公告)号：US20160109571A1
公开(公告)日：2016-04-21
申请号：US14980327
申请日：2015-12-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： SHUQING ZENG , WENDE ZHANG , MARK E. SHIELDS
CPC classification number: G01S13/931 , G01S7/40 , G01S7/41 , G01S13/87 , G01S2007/4039 , G01S2013/9346 , G01S2013/9375
Abstract: A system and method for providing target selection and threat assessment for vehicle collision avoidance purposes that employ probability analysis of radar scan returns. The system determines a travel path of a host vehicle and provides a radar signal transmitted from a sensor on the host vehicle. The system receives multiple scan return points from detected objects, processes the scan return points to generate a distribution signal defining a contour of each detected object, and processes the scan return points to provide a position, a translation velocity and an angular velocity of each detected object. The system selects the objects that may enter the travel path of the host vehicle, and makes a threat assessment of those objects by comparing a number of scan return points that indicate that the object may enter the travel path to the number of the scan points that are received for that object.
Abstract translation: 一种系统和方法，用于为雷达扫描返回的概率分析提供用于车辆碰撞避免目的的目标选择和威胁评估。 该系统确定主车辆的行驶路径并提供从主车辆上的传感器发送的雷达信号。 系统从检测到的对象接收多个扫描返回点，处理扫描返回点以产生限定每个检测对象轮廓的分布信号，并处理扫描返回点以提供每个检测到的对象的位置，平移速度和角速度 目的。 该系统选择可能进入主车辆的行进路径的物体，并且通过将指示物体可以进入行驶路径的扫描返回点的数量与扫描点的数量进行比较来对这些物体进行威胁评估， 被接收为该对象。
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3.发明申请公开(公告)号：US20160098815A1
公开(公告)日：2016-04-07
申请号：US14944409
申请日：2015-11-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： WENDE ZHANG , JINSONG WANG , BAKHTIAR B. LITKOUHI , KENT S. LYBECKER , RYAN M. FRAKES
CPC classification number: G06T3/0062 , B60R1/00 , B60R2300/10 , B60R2300/306 , B60R2300/802 , B60R2300/8093 , G06T3/0018 , G06T7/75 , G06T2207/30244 , G06T2207/30264 , H04N5/23238 , H04N7/18
Abstract: A method of displaying a captured image on a display device. A real image is captured by an image capture device. The image capture device uses a field-of-view lens that distorts the real image. A camera model is applied to the captured real image. The camera model maps objects in the captured real image to an image sensor plane of the image capture device to generate a virtual image. The image sensor plane is reconfigurable to virtually alter a shape of the image sensor plane to a non-planar surface. The virtual image formed on the non-planar image surface of the image sensor is projected to the display device.
Abstract translation: 一种在显示装置上显示拍摄图像的方法。 真实图像由图像捕获设备捕获。 图像捕获设备使用使真实图像变形的视场透镜。 相机模型应用于捕获的真实图像。 相机模型将拍摄的实际图像中的对象映射到图像捕获设备的图像传感器平面，以生成虚拟图像。 图像传感器平面可重构以将图像传感器平面的形状实际上改变为非平面表面。 形成在图像传感器的非平面图像表面上的虚像被投影到显示装置。
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公开(公告)号：US20150363651A1
公开(公告)日：2015-12-17
申请号：US14302622
申请日：2014-06-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： QINGRONG ZHAO , WENDE ZHANG , JINSONG WANG , BAKHTIAR BRIAN LITKOUHI
CPC classification number: G06K9/00791
Abstract: A method for determining a wet road surface condition for a vehicle driving on a road. A first image exterior of the vehicle is captured by an image capture device. A second image exterior of the vehicle is captured by the image capture device. A section of the road is identified in the first and second captured images. A texture of the road in the first and second images captured by a processor are compared. A determination is made whether the texture of the road in the first image is different from the texture of the road in the second image. A wet driving surface indicating signal is generated in response to the determination that the texture of the road in the first image is different than the texture of the road in the second image.
Abstract translation: 一种用于确定在道路上行驶的车辆的湿路面状况的方法。 车辆的第一图像外部由图像捕获装置捕获。 车辆的第二图像外部由图像捕获装置捕获。 在第一和第二拍摄图像中识别道路的一部分。 比较由处理器捕获的第一和第二图像中的道路纹理。 确定第一图像中的道路的纹理是否不同于第二图像中的道路的纹理。 响应于第一图像中的道路的纹理与第二图像中的道路的纹理不同的确定，产生湿驱动表面指示信号。
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公开(公告)号：US20160026877A1
公开(公告)日：2016-01-28
申请号：US14803714
申请日：2015-07-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： WENDE ZHANG , ZHENCHENG HU
CPC classification number: G06K9/00798 , G06K9/4633 , G06K2009/3291 , G06T3/00 , G06T3/4038 , H04N7/183
Abstract: A system and method for detecting a stop line on a roadway. The system and method a front view camera that generates images of the roadway. The system and method also include a controller that receives the images generated from the front view camera, including a bird's eye view image, said controller further programmed to provide a composite image that includes an original bird's eye view image and a rotated bird's eye view image. The controller is also programmed to use the composite image to determine if a stop line is present on the roadway.
Abstract translation: 一种用于检测道路上的停止线的系统和方法。 该系统和方法是产生道路图像的前视摄像机。 所述系统和方法还包括控制器，其接收由前视摄像机产生的图像，包括鸟瞰图图像，所述控制器进一步编程以提供包括原始鸟瞰图图像和旋转鸟瞰图图像的合成图像 。 控制器也被编程为使用合成图像来确定道路上是否存在停止线。
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Patent Agency Ranking
公开(公告)号：US20160006932A1
公开(公告)日：2016-01-07
申请号：US14790394
申请日：2015-07-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： WENDE ZHANG , Jinsong Wang , Brunno L. Moretti
CPC classification number: H04N5/23235 , B60R1/00 , G06T3/0093 , H04N5/23216 , H04N5/2628 , H04N5/3572
Abstract: A method for providing a high resolution display image that includes providing a camera image that can be processed into at least two different camera views. The method also includes identifying a warped grid in each of the at least two different camera views and identifying a minimum field of view for displaying each of the at least two different camera views. The method further includes cropping the camera image based on the identified minimum field of view and de-warping the at least two different camera views to provide the high resolution display image.
Abstract translation: 一种用于提供高分辨率显示图像的方法，其包括提供可被处理成至少两个不同相机视图的相机图像。 所述方法还包括识别所述至少两个不同相机视图中的每一个中的翘曲网格，并且识别用于显示所述至少两个不同相机视图中的每一个的最小视场。 该方法还包括基于所识别的最小视场裁剪摄像机图像，并且对至少两个不同的摄像机视图进行去翘曲以提供高分辨率显示图像。
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公开(公告)号：US20150329048A1
公开(公告)日：2015-11-19
申请号：US14710289
申请日：2015-05-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： JINSONG WANG , WENDE ZHANG , BAKHTIAR BRIAN LITKOUHI
CPC classification number: H04N5/247 , B60R1/00 , B60R2300/102 , B60R2300/105 , B60R2300/303 , G06T7/80 , G06T7/85 , G06T2207/10021 , G06T2207/30261 , G06T2207/30264 , H04N17/002
Abstract: A system and method for providing online calibration of a plurality of cameras in a surround-view camera system on a vehicle. The method provides consecutive images from each of the cameras in the surround-view system and identifies overlap image areas for adjacent cameras. The method identifies matching feature points in the overlap areas of the images and estimates camera parameters in world coordinates for each of the cameras. The method then estimates a vehicle pose of the vehicle in world coordinates and calculates the camera parameters in vehicle coordinates using the estimated camera parameters in the world coordinates and the estimated vehicle pose to provide the calibration.
Abstract translation: 一种用于在车辆上的环绕立体照相机系统中提供多个摄像机的在线校准的系统和方法。 该方法提供来自环绕视景系统中的每个摄像机的连续图像，并识别相邻摄像机的重叠图像区域。 该方法识别图像的重叠区域中的匹配特征点并且估计每个相机的世界坐标中的相机参数。 该方法然后估计车辆在世界坐标中的姿态，并使用世界坐标中估计的摄像机参数和估计的车辆姿态来计算车辆坐标中的摄像机参数以提供校准。
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公开(公告)号：US20140192227A1
公开(公告)日：2014-07-10
申请号：US14040952
申请日：2013-09-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： WENDE ZHANG , JINSONG WANG , KENT S. LYBECKER , JEFFREY S. PIASECKI , RYAN M. FRAKES , TRAVIS S. HESTER
CPC classification number: H04N9/045 , H04N5/2355
Abstract: A method for generating a glare-reduced image from images captured by a camera device of a subject vehicle includes obtaining a short-exposure image and a long-exposure image and generating a resulting high dynamic range image based on the short-exposure and long-exposure images. Pixel values are monitored within both the short- and long-exposure images. A light source region is identified within both the short- and long-exposure images based on the monitored pixel values. A glaring region is identified based on the identified light source region and one of calculated pixel ratios and calculated pixel differences between the monitored pixel values of the long- and short-exposure images. The identified glaring region upon the resulting high dynamic range image is modified with the identified light source region within the short-exposure image. The glare-reduced image is generated based on the modified identified glaring region upon the resulting HDR image.
Abstract translation: 用于通过本车辆的照相机装置拍摄的图像产生眩光减少图像的方法包括：获得短曝光图像和长曝光图像，并且基于短曝光和长曝光图像生成所得到的高动态范围图像， 曝光图像。 在短曝光和长曝光图像中都监视像素值。 基于所监视的像素值，在短曝光和长曝光图像内识别光源区域。 基于所识别的光源区域和计算的像素比率以及长曝光和短曝光图像的监视的像素值之间的计算的像素差异来识别亮度区域。 在所得到的高动态范围图像上的识别的亮度区域用短曝光图像内的所识别的光源区域进行修改。 基于在所得到的HDR图像上修改的识别的亮度区域产生眩光减少的图像。
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公开(公告)号：US20160375831A1
公开(公告)日：2016-12-29
申请号：US15178156
申请日：2016-06-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： JINSONG WANG , WENDE ZHANG , RYAN M. FRAKES , MICHAEL A. WUERGLER , ROBERT D. SIMS, III , MOHANNAD MURAD
CPC classification number: G06F3/048 , B60D1/36 , B60D1/62 , B60R1/00 , B60R2300/305 , B60R2300/808 , B62D15/0295 , G06T11/00
Abstract: A system and method for providing visual assistance through a graphic overlay super-imposed on a back-up camera image displayed on, for example, a touch screen for assisting a vehicle operator when backing up a towing vehicle to align a hitch ball with a trailer drawbar coupler. The method includes providing camera modeling to correlate the camera image in camera coordinates to world coordinates, where the camera modeling provides a graphic overlay to include an alignment line having a height in the camera image that is determined by an estimated height of the trailer drawbar coupler. The touch screen also operates as a human-machine interface (HMI) that improves the visual assistance by providing one or more of image panning, image zoom, picture-in-picture (PIP), and a virtual top-down hitch-view.
Abstract translation: 一种用于通过超级施加在例如显示在例如触摸屏上的备用照相机图像上的图形覆盖物来提供视觉辅助的系统和方法，用于在备用拖车以使拖车与拖车对准时协助车辆操作者 牵引杆联轴器 该方法包括提供相机建模以将摄像机坐标中的摄像机图像与世界坐标相关联，其中相机建模提供图形覆盖以包括在摄像机图像中具有由拖车牵引杆耦合器的估计高度确定的高度的对准线 。 触摸屏还用作人机界面（HMI），通过提供一个或多个图像平移，图像缩放，画中画（PIP）和虚拟自上而下的挂接视图来改善视觉辅助。
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10.发明申请VISION-BASED WET ROAD SURFACE DETECTION USING MIRRORED AND REAL IMAGES 审中-公开基于VISION的湿润路面检测使用镜像和真实图像公开(公告)号：US20150363654A1
公开(公告)日：2015-12-17
申请号：US14302605
申请日：2014-06-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： QINGRONG ZHAO , WENDE ZHANG , JINSONG WANG , BAKHTIAR BRIAN LITKOUHI
CPC classification number: G06K9/00805 , G06K9/00798 , G06T7/68 , G06T2207/30256
Abstract: A method for determining a wet road surface condition on a road. An image exterior of the vehicle is captured by an image capture device. A real object and a virtual object are detected in the captured image. A feature point is identified on the real object and on the virtual object. A potential virtual object associated with the real object is identified on a ground surface of the road in the captured image. The feature point detected on the real object is compared with the feature point detected on the virtual object. A determination is made whether the ground surface includes a mirror effect reflective surface in response to the feature point detected on the real object matching the feature point detected on the virtual object. A wet driving surface indicating signal is generated in response to the determination that the ground surface includes a mirror effect reflective surface.
Abstract translation: 一种用于确定道路上湿路面状况的方法。 车辆的图像外观由图像捕获装置捕获。 在捕获的图像中检测到真实对象和虚拟对象。 在真实对象和虚拟对象上标识特征点。 在被拍摄图像中的道路的地面上识别与真实物体相关联的潜在虚拟物体。 将实际物体上检测到的特征点与虚拟对象上检测到的特征点进行比较。 响应于在与虚拟对象上检测到的特征点匹配的真实对象上检测到的特征点，确定地面是否包括镜面效应反射表面。 响应于地面包括反射镜反射表面的确定，产生湿驱动表面指示信号。
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