Novel “loss rate” metrics are presented that can be used to indicate the quality of a video stream. These metrics may be determined using a simplified method or by a more sophisticated method, the latter method applying different “weights” (i.e., adjustments) to error computations based on the type of frame involved (i.e., I,P, B). Both methods may produce a video quality score within a given range (e.g., in the range of 0 to 1) where one end of the range indicates a video stream of high quality (i.e., no frames are affected), and the other end indicates a video stream of low quality (i.e., all frames are affected).

Title
Methods and systems for computing the quality of an MPEG-2 video stream
Application Number
11/647366
Publication Number
20080159410
Application Date
December 29, 2006
Publication Date
July 3, 2008
Inventor
Mark Anthony Smith
Jersey City
NJ, US
Suryanarayan Perinkulam
Clinton
NJ, US
Agent
Capitol Patent & Trademark Law Firm Pllc
VA, US
IPC
H04N 07/12
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