EAN: 9783031006821

SYNTHESIS LECTURES ON COMPUTER VISION DEFORMA...

Being able to recover the shape of 3D deformable surfaces from a single video stream would make
it possible to field reconstruction systems that run on widely available hardware without
requiring specialized devices. However  because many different 3D shapes can have virtually the
same projection  such monocular shape recovery is inherently ambiguous. In this survey  we will
review the two main classes of techniques that have proved most effective so far: The
template-based methods that rely on establishing correspondences with a reference image in
which the shape is already known  and non-rigid structure-from-motion techniques that exploit
points tracked across the sequences to reconstruct a completely unknown shape. In both cases 
we will formalize the approach  discuss its inherent ambiguities  and present the practical
solutions that have been proposed to resolve them. To conclude  we will suggest directions for
future research. Table of Contents: Introduction   Early Approaches to Non-Rigid Reconstruction
Formalizing Template-Based Reconstruction   Performing Template-Based Reconstruction  
Formalizing Non-Rigid Structure from Motion   Performing Non-Rigid Structure from Motion  
Future Directions

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