Readout Guidance: Learning Control from Diffusion Features
Authors: Grace Luo, Trevor Darrell, Oliver Wang, Dan B Goldman, Aleksander Holynski

We present Readout Guidance a method for controlling text-to-image diffusion models with learned signals. Readout Guidance uses readout heads lightweight networks trained to extract signals from the features of a pre-trained frozen diffusion model at every timestep. These readouts can encode single-image properties such as pose depth and edges; or higher-order properties that relate multiple images such as correspondence and appearance similarity. Furthermore by comparing the readout estimates to a user-defined target and back-propagating the gradient through the readout head these estimates can be used to guide the sampling process. Compared to prior methods for conditional generation Readout Guidance requires significantly fewer added parameters and training samples and offers a convenient and simple recipe for reproducing different forms of conditional control under a single framework with a single architecture and sampling procedure. We showcase these benefits in the applications of drag-based manipulation identity-consistent generation and spatially aligned control.