| Feature correspondence |
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| Correspondence
Problem |
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| • | Given feature
patch F in frame H, find best match in frame I |
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| Find displacement (u,v)
that minimizes SSD error over feature region |
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| Solution |
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| • | Small
displacement: Lukas-Kanade |
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| • | Large
displacement: discrete search over
(u,v) |
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| – | Choose match that
minimizes SSD (or normalized correlation) |
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