Brain signal visualization has emerged as an active research area, serving as
a critical interface between the human visual system and computer vision
models. Although diffusion models have shown promise in analyzing functional
magnetic resonance imaging (fMRI) data, including reconstructing high-quality
images consistent with original visual stimuli, their accuracy in extracting
semantic and silhouette information from brain signals remains limited. In this
regard, we propose a novel approach, referred to as Controllable Mind Visual
Diffusion Model (CMVDM). CMVDM extracts semantic and silhouette information
from fMRI data using attribute alignment and assistant networks. Additionally,
a residual block is incorporated to capture information beyond semantic and
silhouette features. We then leverage a control model to fully exploit the
extracted information for image synthesis, resulting in generated images that
closely resemble the visual stimuli in terms of semantics and silhouette.
Through extensive experimentation, we demonstrate that CMVDM outperforms
existing state-of-the-art methods both qualitatively and quantitatively.Comment: 16 pages, 11 figure