Vision signal treatment device for automatic regulating phase position of sample clock

Vision signal treatment device for automatic regulating phase position of sample clock

  • CN 1,148,697 A
  • Filed: 07/27/1996
  • Published: 04/30/1997
  • Est. Priority Date: 07/27/1995
  • Status: Active Grant
First Claim
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1. signal processing apparatus, the vision signal that is used for will representing under according to the timer clock definition status image is transformed into expression, and each is included in the many-valued numerical data of the pixel of this image, comprising:

  • Conversion equipment is used for this vision signal of sampling under according to the sampling clock definition status, so that this vision signal is transformed into many-valued numerical data;

    Sorter, be used for will assigning to low level image metadata group with the value that is included in the first value scope and the high level image metadata group with the value that is included in the second value scope through the many-valued numerical data of conversion continuously, the value of this second value scope is higher than the value of the first value scope;

    Calculation element is used for calculating continuously according to through the variation of the value of the low level picture elements of the low level image metadata group of classification with at the statistical value of the variation of the value of the high level picture elements in the high level image metadata group of classification;

    AndAdjusting gear is used for adjusting according to the statistical value that calculates continuously the phase place of sampling clock, with the variation of the value of the variation of the value that reduces the low level image metadata and high level image metadata.

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