| Vanishing
Points |
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| Orthogonality
conditions on rotation matrix R, |
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| ri
¢rj = dij |
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| Determine (uc,vc)
from orthocenter of vanishing |
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| point triangle |
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| Then, determine f2
from two |
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| equations |
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| (only need 2
v.p.s if (uc,vc) known) |
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| u2 |
