AI RESEARCH
WFM: 3D Wavelet Flow Matching for Ultrafast Multi-Modal MRI Synthesis
arXiv CS.CV
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ArXi:2604.21146v1 Announce Type: new Diffusion models have achieved remarkable quality in multi-modal MRI synthesis, but their computational cost (hundreds of sampling steps and separate models per modality) limits clinical deployment. We observe that this inefficiency stems from an unnecessary starting point: diffusion begins from pure noise, discarding the structural information already present in available MRI sequences.