| Correlation
and SSD |
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| For larger
displacements, do template matching |
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| • | Define a small
area around a pixel as the template |
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| • | Match the
template against each pixel within a |
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| search area in
next image. |
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| • | Use a match
measure such as correlation, |
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| normalized
correlation, or sum-of-squares |
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| difference |
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| • | Choose the
maximum (or minimum) as the match |
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| • | Sub-pixel
estimate (Lucas-Kanade) |
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