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    • 6. 发明授权
    • Hand gesture detection
    • 手势检测
    • US08792722B2
    • 2014-07-29
    • US12848913
    • 2010-08-02
    • Ming-Chang LiuLiangyin YuQuan Yuan
    • Ming-Chang LiuLiangyin YuQuan Yuan
    • G06K9/00
    • G06K9/00355G06K9/4642
    • A method for detecting presence of a hand gesture in video frames includes receiving video frames having an original resolution, downscaling the received video frames into video frames having a lower resolution, and detecting a motion corresponding to the predefined hand gesture in the downscaled video frames based on temporal motion information in the downscaled video frames. The method also includes detecting a hand shape corresponding to the predefined hand gesture in a candidate search window within one of the downscaled video frames using a binary classifier. The candidate search window corresponds to a motion region containing the detected motion. The method further includes determining whether the received video frames contain the predefined hand gesture based on the hand shape detection.
    • 用于检测视频帧中的手势的存在的方法包括:接收具有原始分辨率的视频帧,将接收到的视频帧缩小成具有较低分辨率的视频帧,以及基于缩小的视频帧检测与预定义的手势相对应的运动 关于缩小视频帧中的时间运动信息。 该方法还包括使用二进制分类器在缩小的视频帧之一内的候选搜索窗口中检测与预定手势相对应的手形。 候选搜索窗口对应于包含检测到的运动的运动区域。 该方法还包括基于手形检测来确定接收到的视频帧是否包含预定义的手势。
    • 8. 发明授权
    • System and method for effectively performing a scene rectification procedure
    • 有效执行场景整改程序的系统和方法
    • US08379979B2
    • 2013-02-19
    • US12932457
    • 2011-02-25
    • Liangyin YuMing-Chang Liu
    • Liangyin YuMing-Chang Liu
    • G06K9/00G06K9/34
    • G06K9/00697G06K9/469G06K9/6278
    • A system and method for effectively performing a scene rectification procedure comprises an image manager that includes a segmentation module, a label module, and a rectification module. The segmentation module initially performs a segmentation procedure upon an image to produce corresponding sub-scenes. The label module then categorizes the sub-scenes by assigning initial labels without utilizing context information from other sub-scenes in the image. The rectification module performs a semantic grouping procedure upon the sub-scenes to produce semantic group nodes corresponding to pairs of the sub-scenes that have a predefined semantic relationship. The rectification module converts a sub-scene graph of the sub-scenes into a semantic graph that includes the semantic group nodes. The rectification module then performs a rectification procedure to convert the initial labels of the sub-scenes into rectified labels. A processor of an electronic device typically controls the image manager for performing the scene rectification procedure.
    • 一种用于有效执行场景整流过程的系统和方法包括:图像管理器,其包括分割模块,标签模块和整流模块。 分割模块最初在图像上执行分割过程以产生相应的子场景。 然后,标签模块通过分配初始标签而不利用图像中其他子场景的上下文信息对子场景进行分类。 整流模块在子场景上执行语义分组过程,以产生与具有预定义语义关系的子场对对应的语义组节点。 整流模块将子场景的子场景图转换为包含语义组节点的语义图。 然后,整流模块执行整流过程,将子场景的初始标签转换为整流标签。 电子设备的处理器通常控制图像管理器执行场景校正过程。
    • 10. 发明授权
    • Automatic image alignment
    • 自动图像对齐
    • US08605972B2
    • 2013-12-10
    • US13410960
    • 2012-03-02
    • Liangyin YuMing-Chang Liu
    • Liangyin YuMing-Chang Liu
    • G06K9/00
    • G06K9/469G06K9/0014G06T7/33G06T2207/20072G06T2207/30024
    • A method for automatically aligning images includes (a) determining initial correspondent point features between a first image and a second image, (b) creating a triangular meshes for the images from the initial correspondent point features within the images, and (c) refining point correspondence between the first and second images based on affine transformation estimation using the triangular meshes. The method may also include (d) creating refined triangular meshes for the images from the point correspondence refined in (c), and (e) determining coordinate alignment within the areas of pairs of correspondent triangles in the refined triangular meshes through interpolation of affine transformation on the pairs of correspondent triangles.
    • 用于自动对准图像的方法包括:(a)确定第一图像和第二图像之间的初始对应点特征,(b)从图像内的初始对应点特征创建用于图像的三角形网格,以及(c)提炼点 基于使用三角形网格的仿射变换估计,第一和第二图像之间的对应关系。 该方法还可以包括(d)从(c)中精简的点对应形成用于图像的精细三角形网格,以及(e)通过仿射变换的内插确定精细三角形网格中对应三角形对的区域内的坐标对齐 对对应的三角形。