发明申请
US20130114902A1 High-Confidence Labeling of Video Volumes in a Video Sharing Service 有权
视频共享服务中视频卷的高可信度标签

  • 专利标题: High-Confidence Labeling of Video Volumes in a Video Sharing Service
  • 专利标题(中): 视频共享服务中视频卷的高可信度标签
  • 申请号: US13601802
    申请日: 2012-08-31
  • 公开(公告)号: US20130114902A1
    公开(公告)日: 2013-05-09
  • 发明人: Rahul SukthankarJay Yagnik
  • 申请人: Rahul SukthankarJay Yagnik
  • 申请人地址: US CA Mountain View
  • 专利权人: GOOGLE INC.
  • 当前专利权人: GOOGLE INC.
  • 当前专利权人地址: US CA Mountain View
  • 主分类号: G06K9/46
  • IPC分类号: G06K9/46
High-Confidence Labeling of Video Volumes in a Video Sharing Service
摘要:
A volume identification system identifies a set of unlabeled spatio-temporal volumes within each of a set of videos, each volume representing a distinct object or action. The volume identification system further determines, for each of the videos, a set of volume-level features characterizing the volume as a whole. In one embodiment, the features are based on a codebook and describe the temporal and spatial relationships of different codebook entries of the volume. The volume identification system uses the volume-level features, in conjunction with existing labels assigned to the videos as a whole, to label with high confidence some subset of the identified volumes, e.g., by employing consistency learning or training and application of weak volume classifiers.The labeled volumes may be used for a number of applications, such as training strong volume classifiers, improving video search (including locating individual volumes), and creating composite videos based on identified volumes.
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