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    • 3. 发明授权
    • Device for determining disappearing direction and method thereof, apparatus for video camera calibration and method thereof
    • 用于确定消失方向的装置及其方法,用于摄像机校准的装置及其方法
    • US09202277B2
    • 2015-12-01
    • US13462210
    • 2012-05-02
    • Yuyu LiuZhi Nie
    • Yuyu LiuZhi Nie
    • H04N5/33H04N5/225H04N3/20G06T7/00G06T7/20G06T3/00
    • G06T7/80G06T3/0031G06T7/246G06T7/70G06T2207/20021G06T2207/20076G06T2207/30232G06T2207/30241
    • A disappearing direction determination device and method, a video camera calibration apparatus and method, a video camera and a computer program product are provided. The device comprises: a moving target detecting unit for detecting in the video image a moving target area where a moving object locates; a feature point extracting unit for extracting at least one feature point on the moving object in the detected moving target area; a moving trajectory obtaining unit for tracking a movement of the feature point in a predetermined number of video image frames to obtain a movement trajectory of the feature point; and a disappearing direction determining unit for determining, according to the movement trajectories of one or more moving objects in the video image, a disappearing direction pointed by a major moving direction of the moving objects. Thus, a disappearing direction and video camera gesture parameters can be determined accurately.
    • 提供消失方向确定装置和方法,摄像机校准装置和方法,摄像机和计算机程序产品。 该装置包括:移动目标检测单元,用于在视频图像中检测运动对象所在的移动目标区域; 特征点提取单元,用于提取检测到的移动目标区域中的移动物体上的至少一个特征点; 移动轨迹获取单元,用于跟踪预定数量的视频图像帧中的特征点的移动以获得特征点的移动轨迹; 以及消失方向确定单元,用于根据所述视频图像中的一个或多个移动对象的移动轨迹确定由所述移动对象的主移动方向指向的消失方向。 因此,可以准确地确定消失方向和摄像机手势参数。
    • 8. 发明申请
    • DISPLAY DEVICE CAPABLE OF REDUCING AFTERIMAGE AND AFTERIMAGE REDUCTION METHOD THEREOF
    • 显示装置,能够减少后期和后期减少方法
    • US20070177058A1
    • 2007-08-02
    • US11530515
    • 2006-09-11
    • Seung-ho JANG
    • Seung-ho JANG
    • H04N3/20H04N5/00
    • G09G3/20G09G2320/046G09G2340/125
    • A display device capable of reducing afterimage, and an afterimage reduction method used by the display device. One or more afterimage reduction patterns having one or more opaque areas, and/or one or more semi-transparent areas and one or more non-opaque areas are stored in a storage unit. A composition unit outputs a final image composed of a displayed main image and afterimage reduction patterns output from the storage unit. A control unit causes afterimage reduction patterns selected by a user from the storage unit to be input to the composition unit, and a final image in which only pixels corresponding to opaque areas and/or semi-transparent areas in the main image are replaced by color of the opaque areas and/or semi-transparent areas in the afterimage reduction patterns to be output from the composition unit. Accordingly, it is possible to view a received main image while reducing afterimage using images of various patterns for afterimage reduction.
    • 能够减少残像的显示装置,以及显示装置使用的残像减少方法。 具有一个或多个不透明区域和/或一个或多个半透明区域和一个或多个非不透明区域的一个或多个残余图像减少图案被存储在存储单元中。 合成单元输出由显示的主图像构成的最终图像和从存储单元输出的余像减少图案。 控制单元使来自存储单元的用户选择的余像图像图案被输入到合成单元,并且其中仅对应于主图像中的不透明区域和/或半透明区域的像素被替换为颜色的最终图像 的残留图像中的不透明区域和/或半透明区域从合成单元输出。 因此,可以通过使用各种图像的图像减少余像来观看接收到的主图像。