System and method to estimate end-to-end video frame delays

A system to calculate video frame delay in a video stream received by a telecommunications endpoint, the system comprising:

• a computer-readable storage medium, storing executable instructions;
• and
• a processor coupled to the computer-readable storage medium, the processor, when executing the executable instructions:
• locates reference features that are characteristic of content in the received video stream;
• calculates reduced reference features from the located reference features;
• receives reduced reference features of a transmitted video stream, the transmitted video stream corresponding to the received video stream;
• calculates a distance between the reduced reference features in the received video stream and the reduced reference features of the transmitted video stream;
• calculates a received trajectory of the reduced reference features from the received video stream;
• calculates a transmitted trajectory of the reduced reference features from the transmitted video stream;
• and
• calculates video frame delay as a time shift between the received trajectory and the transmitted trajectory.