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USING METADATA FOR DC OFFSET CORRECTION FOR AN AC-COUPLED VIDEO LINK

  • US 20200137350A1
  • Filed: 09/10/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/26/2018
  • Status: Active Grant
First Claim
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1. A system for transmitting a video signal over a video link, the system comprising:

  • a transmitter configured to;

    compute a statistical characteristic for a group of pixels of the video signal acquired by a camera,provide to the receiver the video signal over the video link, andprovide to the receiver metadata indicative of the computed statistical characteristic; and

    a receiver configured to;

    compute the statistical characteristic for the group of pixels of the video signal received from the transmitter,obtain the statistical characteristic computed by the transmitter from the metadata provided by the transmitter,compute a value indicative of a difference between the statistical characteristic computed by the receiver and the statistical characteristic computed by the transmitter, andcorrect one or more values of the video signal received from the transmitter by generating, for each original value of the one or more values, a corrected value, wherein the corrected value is equal to the original value modified by a value that is based on the computed value indicative of the difference.

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