source:
trunk/src/toolbox_calib/is3D.m
@
782
| Last change on this file since 782 was 725, checked in by , 11 years ago | |
|---|---|
| File size: 228 bytes | |
| Rev | Line | |
|---|---|---|
| [725] | 1 | function test = is3D(X), |
| 2 | ||
| 3 | ||
| 4 | Np = size(X,2); | |
| 5 | ||
| 6 | %% Check for planarity of the structure: | |
| 7 | ||
| 8 | X_mean = mean(X')'; | |
| 9 | ||
| 10 | Y = X - (X_mean*ones(1,Np)); | |
| 11 | ||
| 12 | YY = Y*Y'; | |
| 13 | ||
| 14 | [U,S,V] = svd(YY); | |
| 15 | ||
| 16 | r = S(3,3)/S(2,2); | |
| 17 | ||
| 18 | test = (r > 1e-3); | |
| 19 |
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