Image Processing Reference

In-Depth Information

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Figure 6.13:
Reconstruction of a deforming cushion
Llado
et al.
[
2010
]. The approach relies on the

rigid chair to constrain the motion estimation. On the second and third rows, the reconstructed surface

is shown from two different viewpoints. Courtesy of A. Del Bue.

The segmented rigid points are then used to compute the motion parameters. Finally, the non-

rigid structure is estimated via a nonlinear optimization procedure. In this case, the surface is still

computed as a linear combination of basis shapes. This assumption of rigidly moving points proved

valid for face reconstruction, or when several objects are moving with respect to each other, as shown

in Fig.
6.13
. However, this does not generalize to arbitrary non-rigid objects.

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