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    • 1. 发明授权
    • Video database indexing and query method and system
    • 视频数据库索引和查询方法和系统
    • US5819286A
    • 1998-10-06
    • US570212
    • 1995-12-11
    • Hsiao-Ying YangCheng-Yao NiChih-Hsing YuChih-Chin LiuArbee L. P. Chen
    • Hsiao-Ying YangCheng-Yao NiChih-Hsing YuChih-Chin LiuArbee L. P. Chen
    • G06F17/30
    • G06K9/00744G06F17/30831G06F17/30834G06K9/468Y10S707/99931Y10S707/99945
    • A video indexing and query execution system includes a processor which indexes video clips by: (a) identifying each symbol of one or more graphical icons in each frame of each video clip, (b) determining the horizontal, vertical and temporal coordinates of each symbol of the identified graphical icons, and (c) constructing a database for each identified symbol of the graphical icons. The processor converts a video query from graphical form to string form by: (a) receiving a video query specifying the vertical, horizontal and temporal coordinates of a graphical icon to be matched in at least one frame to be retrieved, and (b) constructing a normal 3-D string from the video query indicating the distance between each symbol of each icon in the video query in each direction. The processor also executes a video query on a video database by: (a) identifying only those video clips of the database whose signatures contain the signature of the executed video query, (b) for each of the identified video clips: (b1) constructing a 1-D list for each of the horizontal, vertical and temporal directions, comprising a plurality of sets of symbols of icons contained in video query, each set containing a permutation of symbols of the icons which satisfy the video query in the respective direction of the 1-D list, and (b2) forming the intersection of the three 1-D lists, and (c) identifying the portions of the video clips, indicated by a corresponding set contained in an intersection set of at least one of the identified video clips, as satisfying the video query.
    • 视频索引和查询执行系统包括:处理器,其通过以下步骤对视频剪辑进行索引:(a)识别每个视频剪辑的每个帧中的一个或多个图形图标的每个符号,(b)确定每个符号的水平,垂直和时间坐标 的识别图形图标,以及(c)为图形图标的每个识别的符号构建数据库。 处理器通过以下方式将视频查询转换成图形形式到字符串形式:(a)接收指定要在要检索的至少一个帧中匹配的图形图标的垂直,水平和时间坐标的视频查询,以及(b)构建 来自视频查询的正常3-D字符串,指示每个方向上视频查询中每个图标的每个符号之间的距离。 处理器还通过以下方式对视频数据库执行视频查询:(a)仅识别其签名包含执行的视频查询的签名的数据库的视频剪辑,(b)针对每个所识别的视频剪辑:(b1)构造 用于水平,垂直和时间方向中的每一个的1-D列表,包括视频查询中包含的图标的多组符号集合,每个集合包含满足在相应方向上的视频查询的图标的符号排列 所述1-D列表和(b2)形成三个1-D列表的交集,以及(c)识别由包含在所识别的至少一个的交集中的相应集合所指示的视频剪辑的部分 视频剪辑,满足视频查询。