  We propose a novel method to generate fabrication blueprints from images of
carpentered items. While 3D reconstruction from images is a well-studied
problem, typical approaches produce representations that are ill-suited for
computer-aided design and fabrication applications. Our key insight is that
fabrication processes define and constrain the design space for carpentered
objects, and can be leveraged to develop novel reconstruction methods. Our
method makes use of domain-specific constraints to recover not just valid
geometry, but a semantically valid assembly of parts, using a combination of
image-based and geometric optimization techniques.
  We demonstrate our method on a variety of wooden objects and furniture, and
show that we can automatically obtain designs that are both easy to edit and
accurate recreations of the ground truth. We further illustrate how our method
can be used to fabricate a physical replica of the captured object as well as a
customized version, which can be produced by directly editing the reconstructed
model in CAD software.
