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Apparatus for assessing quality of a picture in transmission, and apparatus for remote monitoring quality of a picture in transmission

  • US 7,068,304 B2
  • Filed: 08/23/2001
  • Issued: 06/27/2006
  • Est. Priority Date: 08/25/2000
  • Status: Active Grant
First Claim
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1. An apparatus for assessing quality of a picture in transmission on a picture transmission path having a plurality of transmission processing units connected in series, the apparatus comprising:

  • means for extracting characteristic values of a picture transmitted on the picture transmission path at predetermined points on the picture transmission path, wherein the apparatus assesses the picture quality of the picture based on the characteristic values of the picture,wherein the apparatus does not require that the characteristic values, which are extracted from the picture transmission path, be reinserted back into the picture transmission path, andwherein the apparatus does not require that characteristic values extracted at one of the predetermined points be delayed in time for synchronization to match characteristic values extracted at another of the predetermined points.

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