| Solving for homographies |
| 2n × 9 |
| 9 |
| 2n |
| Defines a least squares
problem: |
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| • | Since h is
only defined up to scale, solve for unit vector ĥ |
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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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