ly integrate
user-specified objects into target scenes. As generative models continue to
scale, training becomes increasingly costly in terms of memory and computation,
highlighting the need for training-free and scalable editing frameworks.To this
end, we propose PosBridge an efficient and flexible framework for inserting
custom objects. A key component of our method is positional embedding
transplant, which guides the diffusion model to faithfully replicate the
structural characteristics of reference obje