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    Method of adapting video images to small screen sizes
    2.
    发明授权
    Method of adapting video images to small screen sizes 有权
    使视频图像适应小屏幕尺寸的方法

    公开(公告)号：US08432492B2

    公开(公告)日：2013-04-30

    申请号：US12933539

    申请日：2008-03-20

    申请人： Joerg Deigmoeller ,  Helmut Neuschmied ,  Andreas Kriechbaum ,  Jose Bernardo Dos Santos Cardoso ,  Fausto Jose Oliveira de Carvalho ,  Roger Salgado de Alem ,  Benoit Huet ,  Bernard Merialdo ,  Remi Trichet ,  Renate Stoll ,  Melanie Stoll ,  Christoph Stoll

    发明人： Joerg Deigmoeller ,  Gerhard Stoll ,  Helmut Neuschmied ,  Andreas Kriechbaum ,  Jose Bernardo Dos Santos Cardoso ,  Fausto Jose Oliveira de Carvalho ,  Roger Salgado de Alem ,  Benoit Huet ,  Bernard Merialdo ,  Remi Trichet

    IPC分类号： H04N7/26

    CPC分类号： H04N5/4401 ,  G06K9/00624 ,  G06K9/3233 ,  G06K9/46 ,  G09G2340/0442 ,  G09G2340/045 ,  H04N5/147 ,  H04N7/0122 ,  H04N21/4126 ,  H04N21/44008 ,  H04N21/440245 ,  H04N21/440263 ,  H04N21/4621 ,  H04N21/84

    摘要： To improve a cropping system by obtaining coverage of a wide range of contents for smaller sized displays of handheld devices, a method starts from a metadata aggregation and corresponding video, e.g. in post-production, program exchange and archiving, wherein (a) video is passed to a video analysis to deliver video, e.g. by use of motion detection, morphology filters, edge detection, etc., (b) separated video and metadata are combined to extract important features in a context wherein important information from the metadata is categorized and used to initialize a dynamically fitted chain of feature extraction steps adapted to the delivered video content, (c) extracted important features are combined to define regions of interest (ROI) which are searched in consecutive video frames by object tracking, the object tracking identifies a new position and deformation of each initialized ROI in consecutive video frames and returns this information to the feature extraction thereby obtaining a permanent communication between the feature extraction and the object tracking, (d) one or plural ROIs are extracted and input video frame by video frame into a cropping step (e); based on weighting information a well composed image part is cropped by classifying the supplied ROIs by importance, and (f) the cropped image area(s) are scaled to the desired small screen size.

    摘要翻译： 为了通过获得手持设备的较小尺寸显示器的广泛内容的覆盖来改进裁剪系统，方法从元数据聚合和对应的视频（例如， 在后期制作，节目交换和归档中，其中（a）将视频传递到视频分析以传送视频，例如， 通过使用运动检测，形态滤波器，边缘检测等，（b）分离的视频和元数据被组合以在上下文中提取重要特征，其中来自元数据的重要信息被分类并用于初始化动态拟合的特征提取链 将所提供的视频内容适应的步骤，（c）提取的重要特征被组合以定义通过对象跟踪在连续视频帧中搜索的感兴趣区域（ROI），对象跟踪识别连续的每个初始化ROI的新位置和变形 视频帧，并将该信息返回到特征提取，从而获得特征提取和对象跟踪之间的永久通信;（d）提取一个或多个ROI并通过视频帧将视频帧输入到裁剪步骤（e）中; 基于加权信息，通过按照重要性对提供的ROI进行分类来裁剪精细组合的图像部分，以及（f）裁剪的图像区域被缩放到期望的小屏幕尺寸。