Methods and systems for improving error resilience in video delivery

摘要

A multimedia transceiver apparatus continuously generates a model of a video scene, and then uses the generated model to estimate missing sections (e.g., image frames) of the video stream by morphing and/or modifying available uncorrupted video data based on the model. By estimating the missing sections, the subjective quality of video under error conditions (e.g., image frame loss, image frame corruption, video signal interruption, etc.) is improved.

主权项

1. A multimedia transceiver apparatus comprising:
a frame prediction circuit configured to,
generate a parameterized model description for each of a plurality of image frames in a sequence of image frames of a video scene, the plurality of image frames including at least a current image frame and a previous image frame, and the parameterized model description including position and orientation information for objects in an image frame;predict a parameterized model description for a subsequent image frame in the sequence of image frames based on the parameterized model descriptions for the plurality of image frames, andestimate the subsequent image frame based on the current image frame and the predicted parameterized model description for the subsequent image frame; a signal loss detector configured to detect an interruption in a received video signal; and an output selector configured to output the estimated subsequent image frame in response to the detected interruption in the received video signal.