Patent ID: 9288071
Filing Date: 2016-03-15
CPC Classification: H04L,H04N

Claim Text:
1. A method for enabling quality assessment of a stream of frames of video data, wherein the video data are transmitted via a packet network and each frame of video data is represented by a variable number of packets, the method comprising: receiving a sequence of packets associated with the stream of frames of video data; generating a set of parameters from said sequence of packets, the set of parameters being suitable for generating an estimated mean opinion score for the stream of frames of video data, one parameter of said generated set of parameters comprising a parameter indicating an error propagation attenuation level for a slice, said generating of said parameter indicating an error propagation attenuation level comprises, for inter-coded slices, calculating a ratio of intra-coded macroblocks and total number of macroblocks in the slice, and wherein for intra-coded slices the parameter is set to zero; and inserting said generated set of parameters as side information into said stream of frames; wherein the video data comprise a slice level and wherein the generated set of parameters comprises at least one parameter that refers individually to the slice level of the video.