| Solving for homographies |
| A |
| h |
| 0 |
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| Linear least
squares |
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| • | Since h is
only defined up to scale, solve for unit vector ĥ |
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| • | Minimize |
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| • | Solution: ĥ
= eigenvector of ATA with smallest eigenvalue |
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| • | Works with 4 or
more points |
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