Invention Grant
US08218089B2 Video signal processing apparatus, video signal processing method, and program 失效
视频信号处理装置,视频信号处理方法和程序

  • Patent Title: Video signal processing apparatus, video signal processing method, and program
  • Patent Title (中): 视频信号处理装置,视频信号处理方法和程序
  • Application No.: US12534404
    Application Date: 2009-08-03
  • Publication No.: US08218089B2
    Publication Date: 2012-07-10
  • Inventor: Takayoshi Kawaguchi
  • Applicant: Takayoshi Kawaguchi
  • Applicant Address: JP Tokyo
  • Assignee: Sony Corporation
  • Current Assignee: Sony Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Frommer Lawrence & Haug LLP
  • Agent William S. Frommer; Thomas F. Presson
  • Priority: JPP2008-201009 20080804
  • Main IPC: H04N5/52
  • IPC: H04N5/52
Video signal processing apparatus, video signal processing method, and program
Abstract:
A video signal processing apparatus includes: a gain inverse correction means for giving an inverse correction gain resulting in an inverse correction characteristic to a gain to a video signal subjected to automatic gain control and outputting the video signal; a texture component removing means for removing a texture component from the video signal output from the gain inverse correction means; a gain inverse-inverse correction means for giving an inverse-inverse correction gain to the video signal output from the texture component removing means; a texture component extracting means for extracting a texture component signal, utilizing the video signal output by the gain inverse correction means and the video signal output by the texture component removing means; and a signal synthesizing means for synthesizing a structure component signal based on the video signal output by the gain inverse-inverse correction means and the texture component signal to output a video signal.
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