MOTION VECTOR REFINING DEVICE AND VIDEO REFINING METHOD THEREOF
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United States of America Patent
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Issued Date -
May 30, 2013
app pub date -
Feb 2, 2012
filing date -
Nov 28, 2011
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Abandoned
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Abstract
A motion vector refining device and a video refining method thereof are provided. The motion vector refining device includes a motion estimation unit, a reliability analysis module and a motion vector mixing module. The motion estimation unit receives a plurality of frames in a video signal or using historical information (for example, motion vectors of closing frames) previously calculated by the motion estimation unit, so as to estimate N target motion vectors. The reliability analysis module analyzes spatial and temporal reliability factors of the N target motion vectors, so as to estimate and adjust N reliability weight values dynamically. The motion vector mixing module uses the reliability weight values to dynamically mix the target motion vectors to produce a refined motion vector. Therefore, the motion vector refining device and a motion interpolation apparatus using the same can avoid instability of a motion vector on an edge of a moving object.
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