Invention Grant
US08135234B2 Method and apparatus for edge-based spatio-temporal filtering 有权
基于边缘的时空滤波的方法和装置

  • Patent Title: Method and apparatus for edge-based spatio-temporal filtering
  • Patent Title (中): 基于边缘的时空滤波的方法和装置
  • Application No.: US12223051
    Application Date: 2007-01-30
  • Publication No.: US08135234B2
    Publication Date: 2012-03-13
  • Inventor: Alexandros TourapisJill MacDonald Boyce
  • Applicant: Alexandros TourapisJill MacDonald Boyce
  • Applicant Address: FR Boulogne-Billancourt
  • Assignee: Thomson Licensing
  • Current Assignee: Thomson Licensing
  • Current Assignee Address: FR Boulogne-Billancourt
  • Agent Robert D. Shedd; Paul P. Kiel; Guy H. Eriksen
  • International Application: PCT/US2007/002578 WO 20070130
  • International Announcement: WO2007/089803 WO 20070809
  • Main IPC: G06K9/40
  • IPC: G06K9/40
Method and apparatus for edge-based spatio-temporal filtering
Abstract:
There are provided methods and apparatus for edge-based spatio-temporal filtering. An apparatus for filtering a sequence of pictures includes a spatial filter, a motion compensator, a deblocking filter, and a temporal filter. The spatial filter is for spatially filtering a picture in the sequence and at least one reference picture selected from among previous pictures and subsequent pictures in the sequence with respect to the picture. The motion compensator, in signal communication with the spatial filter, is for forming, subsequent to spatial filtering, multiple temporal predictions for the picture from the at least one reference picture. The deblocking filter, in signal communication with the motion compensator, is for deblock filtering the multiple temporal predictions. The temporal filter, in signal communication with the deblocking filter, is for temporally filtering the multiple temporal predictions and combining the multiple temporal predictions to generate a noise reduced version of the picture.
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