ResearchResearch paperImage, Video & 3D Generation1 source · Oct 8, 2026

Fresco++: Frequency-Guided and Canonical-Consistent Optimization for Fine-Grained Head Avatar Modeling

We propose Fresco++, a unified optimization framework for fine-grained and view-consistent head avatar reconstruction.

Key points

  • Head avatar optimization is typically driven by per-view image supervision, which can lead to premature fitting of unstable high-frequency details and inconsistent local appearance across viewpoints.
  • Fresco++ addresses these challenges by regulating both the progression of visual detail and the formation of cross-view supervision during optimization.
  • For frequency-aware optimization, a progressive curriculum first stabilizes low-frequency structures and then introduces high-frequency constraints to recover fine facial and hair details without amplifying spurious responses at early stages.
  • For cross-view optimization, we introduce Canonical Group Consensus, which associates local observations through shared canonical surface regions and establishes correspondence across different viewpoints.

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