InstantGroup: Instant Template Generation for Scalable Group of Brain MRI Registration

arXiv:2211.05622v2 Announce Type: replace-cross
Abstract: Template generation is a critical step in groupwise image registration, which involves aligning a group of subjects into a common space. While existing methods can generate high-quality template images, they often incur substantial time costs or are limited by fixed group scales. In this paper, we present InstantGroup, an efficient groupwise template generation framework based on variational autoencoder (VAE) models that leverage latent representations' arithmetic properties, enabling scalability to groups of any size. InstantGroup features …

abstract arxiv brain costs cs.cv eess.iv generate image images instant mri quality registration replace scalable space template type while