Invention Grant
US07899113B2 Technique for simulating film grain on encoded video 有权
用于在编码视频上模拟胶片颗粒的技术

  • Patent Title: Technique for simulating film grain on encoded video
  • Patent Title (中): 用于在编码视频上模拟胶片颗粒的技术
  • Application No.: US10552179
    Application Date: 2004-02-24
  • Publication No.: US07899113B2
    Publication Date: 2011-03-01
  • Inventor: Cristina GomilaJill MacDonald Boyce
  • Applicant: Cristina GomilaJill MacDonald Boyce
  • Applicant Address: FR Boulogne-Billancourt
  • Assignee: Thomson Licensing
  • Current Assignee: Thomson Licensing
  • Current Assignee Address: FR Boulogne-Billancourt
  • Agent Robert D. Shedd; Robert B. Levy
  • International Application: PCT/US2004/005365 WO 20040224
  • International Announcement: WO2004/095829 WO 20041104
  • Main IPC: H04N7/12
  • IPC: H04N7/12
Technique for simulating film grain on encoded video
Abstract:
Simulating film grain in an encoded image occurs by extracting the film grain and then characterizing the film grain for encoding in a video stream to enable the film grain restoration upon decoding. Typically, the film grain is characterized based either on the type of film, or by using a particular model. In practice, the film grain particulars are transmitted as parallel information to the video coded stream, typically as a film grain Supplemental Enhancement Information (SEI) message when using the ITU T H.264 video coding standard.
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