Invention Grant
US08798144B2 System and method for determining encoding parameters 有权
用于确定编码参数的系统和方法

  • Patent Title: System and method for determining encoding parameters
  • Patent Title (中): 用于确定编码参数的系统和方法
  • Application No.: US13122568
    Application Date: 2009-10-05
  • Publication No.: US08798144B2
    Publication Date: 2014-08-05
  • Inventor: Catherine Lamy-BergotBenjamin Gadat
  • Applicant: Catherine Lamy-BergotBenjamin Gadat
  • Applicant Address: FR Neuilly sur Seine
  • Assignee: Thales
  • Current Assignee: Thales
  • Current Assignee Address: FR Neuilly sur Seine
  • Agency: Baker & Hostetler LLP
  • Priority: FR0805513 20081006
  • International Application: PCT/EP2009/062905 WO 20091005
  • International Announcement: WO2010/040715 WO 20100415
  • Main IPC: H04N7/26
  • IPC: H04N7/26
System and method for determining encoding parameters
Abstract:
A method for optimizing a video transmission, in a constrained environment using a video coder adapted for coding the video data to be transmitted, includes determining one or more compression parameters for the video coder considered to transmit the video data at a given throughput or for a given quality. The method defines and uses reference charts for the coder considered, and predicts for the part of the video sequence undergoing compression, using the reference charts, compression parameters to be used, such as the quantization interval, by selecting a chart for which the targeted range of throughput or of quality is the closest in distance to the part of the sequence to be compressed, while complying with a given margin, and updates with an iterative method the prediction step to converge on the best choice of parameterization. The iteration includes at least one compression step followed by a verification step, to compress the video data to be transmitted with the parameters.
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