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    METHOD FOR PREPARING A POROUS POLYIMIDE FILM AND A COMPOSITE MEMBRANE COMPRISING THE SAME
    1.
    发明申请
    METHOD FOR PREPARING A POROUS POLYIMIDE FILM AND A COMPOSITE MEMBRANE COMPRISING THE SAME 审中-公开
    制备多孔聚酰亚胺膜的方法和包含其的复合膜

    公开(公告)号：US20120028167A1

    公开(公告)日：2012-02-02

    申请号：US13193143

    申请日：2011-07-28

    申请人： Xin Wang ,  Tien Hoa Nguyen

    发明人： Xin Wang ,  Tien Hoa Nguyen

    IPC分类号： H01M8/10 ,  B29C67/20 ,  C08G73/10 ,  B29C39/00

    CPC分类号： H01M8/103 ,  C08G73/1042 ,  C08G73/105 ,  C08G73/1067 ,  C08G73/1071 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1039 ,  H01M8/1044 ,  H01M8/1048 ,  H01M8/1051 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1067 ,  H01M8/1072 ,  H01M8/1081 ,  Y02P70/56

    摘要： The present invention relates to a method for preparing a porous polyimide film, comprising reacting an aromatic dianhydride with one or more aromatic diamines in a suitable solvent to form poly(amic acid), adding a dehydrated agent of an acid anhydride and an organic base to the reaction mixture to convert the poly(amic acid) to a polyimide precursor, casting the reaction mixture comprising the polyimide precursor onto a solid support to form a film, coagulating the polyimide precursor in a coagulating bath comprising a mixture of a solvent and a non-solvent to develop a porous structure, and drying the coagulated polyimide precursor in air to form the porous polyimide film. A composite membrane comprising same and its use are also provided.

    摘要翻译： 本发明涉及一种制备多孔聚酰亚胺膜的方法，包括使芳族二酐与一种或多种芳族二胺在合适的溶剂中反应形成聚（酰胺酸），加入酸酐和有机碱的脱水剂 将聚（酰胺酸）转化为聚酰亚胺前体的反应混合物，将包含聚酰亚胺前体的反应混合物浇铸到固体载体上以形成膜，使聚酰亚胺前体在包含溶剂和非溶剂的混合物的凝固浴中凝结 开发多孔结构，并在空气中干燥凝结的聚酰亚胺前体以形成多孔聚酰亚胺膜。 还提供了包含其的复合膜及其用途。

    Record player
    3.
    外观设计
    Record player 有权

    公开(公告)号：USD873235S1

    公开(公告)日：2020-01-21

    申请号：US29672481

    申请日：2018-12-06

    申请人： Xin Wang

    设计人： Xin Wang

    Interactive system and method for creating music by substituting audio tracks
    5.
    发明授权
    Interactive system and method for creating music by substituting audio tracks 有权

    公开(公告)号：US10283097B2

    公开(公告)日：2019-05-07

    申请号：US15964052

    申请日：2018-04-26

    申请人： Zheng Shi ,  Zhengzheng Pan ,  Xin Wang

    发明人： Zheng Shi ,  Zhengzheng Pan ,  Xin Wang

    IPC分类号： G10H1/36 ,  G10H1/00 ,  G10H1/38 ,  G10H1/40

    摘要： In order to help music players without sufficient musical knowledge to adapt original music pieces but still keep the original style, the present invention provides an interactive system and the accompanying method for creating music by substituting audio tracks. The interactive system includes a database of musical elements that comprises tonality, tempo, beat, timbre, texture, chord, and pitch, a database of music that contains multiple original music pieces, and a processor. As a result, players without strong knowledge in music theories can create adapted a music piece that matches the style of the original one.

    Method and device for detecting gathering of objects based on stereo vision as well as non-transitory computer-readable medium
    7.
    发明授权
    Method and device for detecting gathering of objects based on stereo vision as well as non-transitory computer-readable medium 有权

    公开(公告)号：US09754160B2

    公开(公告)日：2017-09-05

    申请号：US15151940

    申请日：2016-05-11

    申请人： Qian Wang ,  Shengyin Fan ,  Xin Wang ,  Gang Qiao ,  Jiadan Zhu

    发明人： Qian Wang ,  Shengyin Fan ,  Xin Wang ,  Gang Qiao ,  Jiadan Zhu

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00369 ,  G06K9/00778

    摘要： Method, device, and non-transitory computer-readable medium detecting a gathering of objects based on stereo vision are disclosed, and the method comprises steps of obtaining current and prior images and a corresponding depth map; extracting foreground pixels corresponding to detection objects from the current and prior images, and projecting the foreground pixels onto a ground surface to acquire a foreground projection image including foreground projection blocks; conducting, based on image feature differences of the foreground pixels between the current and prior images, projection onto the ground surface to acquire moving foreground projection blocks; utilizing the moving foreground projection blocks to erode the foreground projection blocks to obtain still foreground projection blocks; and determining, based on the still foreground projection blocks, whether the gathering of objects exists.

    Shadow detection method and device
    10.
    发明授权
    Shadow detection method and device 有权
    阴影检测方法和设备

    公开(公告)号：US09142011B2

    公开(公告)日：2015-09-22

    申请号：US14276053

    申请日：2014-05-13

    申请人： Shengyin Fan ,  Xin Wang ,  Qian Wang ,  Gang Qiao

    发明人： Shengyin Fan ,  Xin Wang ,  Qian Wang ,  Gang Qiao

    IPC分类号： G06T5/00 ,  G06T7/00

    CPC分类号： G06T5/008 ,  G06T7/11 ,  G06T7/194 ,  G06T2200/04 ,  G06T2207/10012 ,  G06T2207/10024 ,  G06T2207/30196 ,  G06T2207/30232

    摘要： Disclosed are a shadow detection method and device. The method includes a step of obtaining a depth/disparity map and color/grayscale image from a two-lens camera or stereo camera; a step of detecting and acquiring plural foreground points; a step of projecting the acquired plural foreground points into a 3-dimensional coordinate system; a step of carrying out, in the 3-dimensional coordinate system, a clustering process with respect to the projected plural foreground points so as to divide the projected plural foreground points into one or more point clouds; a step of calculating density distribution of each of the one or more point clouds by adopting a principal component analysis algorithm so as to obtain one or more principal component values of the corresponding point cloud; and a step of determining, based on the one or more principal component values, whether the corresponding point cloud is a shadow.

    摘要翻译： 公开了一种阴影检测方法和装置。 该方法包括从双镜头相机或立体相机获取深度/视差图和彩色/灰度图像的步骤; 检测并获取多个前景点的步骤; 将所获取的多个前景点投影到三维坐标系中的步骤; 在三维坐标系中执行相对于投影的多个前景点的聚类处理，以将投影的多个前景点划分成一个或多个点云的步骤; 通过采用主成分分析算法计算一个或多个点云中的每一个点的密度分布以便获得对应点云的一个或多个主成分值的步骤; 以及基于所述一个或多个主成分值来确定对应的点云是否是阴影的步骤。