LSD-StructureNet: Modeling Levels of Structural Detail in 3D Part Hierarchies

Understand

Generative models for 3D shapes represented by hierarchies of parts can generate realistic and diverse sets of outputs.

• However, existing models suffer from the key practical limitation of modelling shapes holistically and thus cannot perform conditional sampling, i.e.
• they are not able to generate variants on individual parts of generated shapes without modifying the rest of the shape.
• This is limiting for applications such as 3D CAD design that involve adjusting created shapes at multiple levels of detail.