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This paper proposes a new method to detect static caption regions using intensity range maps and a statistical model of motion vectors. The method relies on the probability of block-based intensity ranges and magnitudes of motion vectors. Intensity range is used to find candidate locations of static captions and the statistical model of motion vector is used to refine accurate caption regions. The...
In this letter, we present a new motion estimation algorithm for frame rate up-conversion. The proposed dual motion estimation algorithm enhances the estimation accuracy of motion vectors by using the unidirectional and bidirectional matching ratios of blocks in the previous and current frames. In addition, the proposed motion estimation approach uses motion vector validity to evaluate the accuracy...
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