Authors

Dan Guo

Publications 2

Preprint Open access

FLOW: Feature-Level Optimal Warping for Generalized Remote Physiological Measurement

Bo Zhao, Junzhe Cao, Dan Guo et al. · 2026

Remote photoplethysmography (rPPG) enables non-contact physiological measurement but remains vulnerable to domain shifts from illumination, motion, and sensors. We propose \textbf{FLOW (Feature-Level Optimal Warping)}, an \emph{optimal transport--driven} framework for domain-generalized rPPG. FLOW integrates a \textbf{ …

Preprint Open access

GFD-OPD: Guidance-Folded On-Policy Distillation of Diffusion Models Across Scales

Zhenxing Zhang, Jiayan Teng, Wenxu Wu et al. · 2026

On-policy distillation (OPD) has demonstrated two important capabilities in language models: compressing large teachers into smaller students and merging expert models into a single model. Existing diffusion OPD, however, mostly focus on the latter, with teachers and students sharing the same backbone and scale. We inv …

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