发明申请
US20150170350A1 Method And Apparatus For Estimating Motion Homogeneity For Video Quality Assessment 审中-公开
用于估计视频质量评估的运动均匀性的方法和装置

  • 专利标题: Method And Apparatus For Estimating Motion Homogeneity For Video Quality Assessment
  • 专利标题(中): 用于估计视频质量评估的运动均匀性的方法和装置
  • 申请号: US14417984
    申请日: 2013-06-14
  • 公开(公告)号: US20150170350A1
    公开(公告)日: 2015-06-18
  • 发明人: Fan ZhangNing LiaoXiaodong GuZhibo Chen
  • 申请人: THOMSON LICENSING
  • 优先权: CNPCT/CN2012/080627 20120827
  • 国际申请: PCT/CN2013/077262 WO 20130614
  • 主分类号: G06T7/00
  • IPC分类号: G06T7/00
Method And Apparatus For Estimating Motion Homogeneity For Video Quality Assessment
摘要:
When a scene moves homogeneously or fast, human eyes become sensitive to freezing artifacts. To measure the strength of motion homogeneity, a panning homogeneity parameter is estimated to account for isotropic motion vectors, for example, caused by camera panning, tilting, and translation, a zooming homogeneity 5 parameter is estimated for radial symmetric motion vectors, for example, caused by camera zooming, and a rotation homogeneity parameter is estimated for rotational symmetric motion vectors, for example, caused by camera rotation. Subsequently, an overall motion homogeneity parameter is estimate based on the panning, zooming, and rotation homogeneity parameters. A freezing distortion factor can then 10 be estimated using the overall motion homogeneity parameter. The freezing distortion factor, combined with compression and slicing distortion factors, can be used to estimate a video quality metric. parameter
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