| Feature descriptors |
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| We know how to
detect good points |
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| Next question: How to match them? |
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| Lots of
possibilities (this is a popular research area) |
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| • | Simple
option: match square windows around
the point |
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| • | State of the art
approach: SIFT |
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| – | David Lowe,
UBC http://www.cs.ubc.ca/~lowe/keypoints/ |
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