PREDICTOR CANDIDATES FOR MOTION ESTIMATION SEARCH SYSTEMS AND METHODS

摘要

System and method for improving operational efficiency of a video encoding pipeline used to encode image data. The video encoding pipeline includes a mode decision block, which selects a first inter-frame prediction mode used to prediction encode a first prediction unit, and a motion estimation block, which receives the first inter-frame prediction mode as feedback from the mode decision block when processing a second prediction unit; determines an initial candidate inter-frame prediction mode of the second prediction unit based at least in part on the first inter-frame prediction mode; and determines a final candidate inter-frame prediction mode of the second prediction unit by performing a first motion estimation search based at least in part on the initial candidate inter-frame prediction mode. The mode decision block determines a rate-distortion cost associated with the final candidate inter-frame prediction mode and a prediction mode used to prediction encode the second prediction unit based at least in part on the rate-distortion cost.

主权项

1. A computing device comprising a video encoding pipeline configured to encode image data, wherein the video encoding pipeline comprises:
a mode decision block configured to select a first inter-frame prediction mode used to prediction encode a first prediction unit; a motion estimation block configured to:
receive the first inter-frame prediction mode as feedback from the mode decision block when processing a second prediction unit;determine an initial candidate inter-frame prediction mode of the second prediction unit based at least in part on the first inter-frame prediction mode; anddetermine a final candidate inter-frame prediction mode of the second prediction unit by performing a first motion estimation search based at least in part on the initial candidate inter-frame prediction mode; wherein the mode decision block is configured to determine a rate-distortion cost associated with the final candidate inter-frame prediction mode and to determine a prediction mode used to prediction encode the second prediction unit based at least in part on the rate-distortion cost.