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lxc_422

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7Â¥: Originally posted by zaq123321 at 2014-10-30 08:54:34
11 unknowns. 10 eqs add detF=0. U may need another pair if there is degeneration in the first ten eqs. This is a nonlinear system.

I can not agree with you. Becasue the number of the equations contaning the unknowns is only four, X'TFX=0, det(F)=0, X'T=... and X=..., Others are known quantities, such as X'd=...,Xd=...,r'd^2=...,rd^2=...,r'd^4=...,and rd^4=...
Since the number of the corresponding points is unlimited, I think 11 pairs of points may be Ok. What's your opinion?
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11Â¥2014-10-31 09:13:36
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zaq123321

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lxc_422: ½ð±Ò+20, ¡ï¡ï¡ïºÜÓаïÖú 2014-10-31 14:09:33
11 unknowns. To get unique solution needs at least 11 constraints. detF = 0 is one constraint. Then at least you need another 10 pairs.  U may need another pair if there is degeneration in these ten eqs. But this is not guranteed, since this is a nonlinear system. It's much complicated than linear system. Good luck.
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12Â¥2014-10-31 10:12:52
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pippi6

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13Â¥2014-10-31 12:58:40
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lxc_422

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13Â¥: Originally posted by pippi6 at 2014-10-31 12:58:40
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14Â¥2014-10-31 14:12:30
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14Â¥: Originally posted by lxc_422 at 2014-10-31 14:12:30
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