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Figure 2


Fig. 2. Reconstruction and 3D measurements of an antlion trap. (A) Diagram of the set-up. The light source projects a shadow of the edge of the plane on the scene. The edge of the plane and the shadow are projected onto the normalised image plane of the camera, and the resulting image is used to reconstruct the three-dimensional scene in the camera's reference frame O(X,Y,Z). (B) Reconstruction of the trap surface. (C) Geometric variables measured on the surface of the trap (green line) and on the conical surface (black line). The figured off-centred position is exaggerated for the purpose of illustration.





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