Method and apparatus for measuring subjective assessment of digital video impairment
AssigneeAlcatel Lucent
InventorsBilgehan Erman, Vanita K. Katkar, Elissa P. Matthews
Life of this patent
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Abstract
A method and system for using key performance indicators of a transport channel to determine key quality indicators associated with information transported there through.
Claims20
A non-transitory computer readable storage medium storing instructions which, when processed by a computer, adapt the operation of the computer to perform a method for assessing quality of a content stream propagated through a communications system, the method comprising:
- determining a plurality of key-performance indicators (KPIs) associated with the performance of a communications channel adapted to carry the content stream;
- estimating, based on the determined plurality of KPIs, an impairment level of one or more quality indicators (KQIs) associated with the presentation quality of the content stream by executing subjective tests, calibrating the results and combining the calibration with determined KPIs;
- and
- determining whether the estimated impairment level of the one or more KQIs exceeds a threshold level of impairment.
A non-transitory computer readable medium for storing computer instructions which, when processed by a computer, adapt the operation of the computer to perform a method for analyzing quality of a content stream propagated through a communications system, the method comprising:
- determining a plurality of key-performance indicators (KPIs) associated with the performance of a communications channel adapted to carry the content stream;
- estimating, based on the determined plurality of KPIs, an impairment level of one or more key quality indicators (KQIs) associated with presentation quality of the content stream by executing subjective tests, calibrating the results and combining the calibration with determined KPIs;
- comparing the estimated impairment level of each of the one or more KQIs to a respective threshold level of impairment to generate impairment data;
- and
- transmitting the impairment data toward impairment data consumers.
Apparatus for analyzing quality of a content stream propagated through a communications system, the apparatus comprising:
- a video quality analyzer (VQA) configured to:
- generate a video quality score set by analyzing a plurality of measured key performance indicators (KPIs), associated with the performance of a communications channel adapted to carry the content stream, with respect to a calibration data set;
- and
- estimate, using the plurality of KPIs, an impairment level of one or more key quality indicators (KQIs) associated with presentation quality of the content stream by executing subjective tests, calibrating the results and combining the calibration with determined KPIs;
- and
- the calibration data set representing quantitative video assessments associated with each of the plurality of KPIs.
An apparatus for analyzing quality of a content stream propagated through a communications system, the apparatus comprising:
- means for determining a plurality of key-performance indicators (KPIs) associated with the performance of a communications channel adapted to carry the content stream;
- means for estimating, based on the determined plurality KPIs, an impairment level of one or more quality indicators (KQIs) associated with presentation quality of the content stream by executing subjective tests, calibrating the results and combining the calibration with determined KPIs;
- and
- means for determining whether the estimated impairment level of the one or more KQIs exceeds a threshold level of impairment.
Dependencies are inferred from the claim text.