Sensor-Assisted Motion Estimation for Efficient Video Encoding
An apparatus comprising a sensor assisted video encoder (SaVE) configured to estimate global motion in a video sequence using sensor data, at least one sensor coupled to the SaVE and configured to generate the sensor data, and a camera equipped device coupled to the SaVE and the sensor and configured to capture the video sequence, wherein the SaVE estimates local motion in the video sequence based on the estimated global motion to reduce encoding time. Also included is a method comprising obtaining a video sequence, obtaining sensor data synchronized with the video sequence, converting the sensor data into global motion predictors, using the global motion predictors to reduce the search range for local motion estimation, and using a search algorithm for local motion estimation based on the reduced search range.
WANG YE [SG]; ZHONG LIN [US]; RAHMATI AHMAD [US]; HONG GUANGMING [SG]
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