| 摘要 |
<p>Motion vector field retiming is the most common method for motion compensated interpolation especially in frame rate up - conversion applications. However, halo problems occur at occlusion regions on object - motion boundaries because of wrong motion estimation. Thus, a reliable re-timed motion vector field is needed to acquire a motion vector field at the temporal location of the frame to be interpolated. In present invention a novel motion vector field retiming method is described. According to said method, FG (3) - BG (4) discrimination metric is calculated for previous motion vector field (fn) and next motion vector field (fn+1). According to calculated discrimination metric, projection of previous motion vector field (fn) in forward direction (101) and next motion vector field (fn+1) in backward direction (102) is done. Said projected vectors (101, 102) compose a motion vector field which is interpolated between previous frame (fn) and next frame (fn+1). By using FG (3) - BG (4) discrimination metric with projection of motion vector fields in previous frame (fn) and next frame (fn+1), halo problems are overcome.
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