Writing study: HairCUP: Hair Compositional Universal Prior for 3D Gaussian Avatars
← ICCV 2025 oral writing corpus
Byungjun Kim, Shunsuke Saito, Giljoo Nam, Tomas Simon, Jason Saragih, Hanbyul Joo, Junxuan Li · Official ICCV 2025 oral record
Figure, table and section ledger
Editorial contribution type: Architecture & representation (primary).
Layout extraction, not a required paper template. Counts are distinct caption labels; a multi-panel figure counts once. Section spans are estimated from heading positions, including floats and whitespace. Method and limitations.
- Canonical PDF
- 11 physical pages
- Before references / appendix
- ≈ 8.1 page-equivalents
- Main figures / tables
- 8 / 1
- Attached appendix figures / tables
- 0 / 0
- Attached appendix span
- No boundary detected; not assumed zero
Extraction notes: No attached appendix boundary detected. Zero means no recognized caption, not independently verified absence.
Section-by-section lengths and source pages
The title/abstract/front matter precede the first numbered heading. A span ends at the next detected top-level heading, not at the last sentence; end-page whitespace is included. References and statements are listed separately. These are not measurements of text-only or artwork area.
All detected figure and table locations
Main text
Attached appendix
No recognized caption labels.
Argument and organization
- 1 Introduction; 2 Related Work
Identifies entangled face/hair priors and missing paired bald captures as coupled representation/data problems.
- 3 Method
Defines relightable primitives, separate identity/motion decoders, synthetic bald supervision and boundary-aware training.
- 4 Experiments; 5 Conclusion
Separates unseen-identity personalization, cross-identity transfer, interpolation and qualitative anchor/boundary ablations.
Problem, claim and contribution
Explains why paired synthetic bald supervision is needed to make compositionality learnable from ordinary haired capture subjects.
Abstract and Sections 1,3.3, physical pp.1–2,5 · Main paper
Argument and section order
The universal architecture and synthetic-data generation have separate subsections, followed by losses that distinguish composite, face-only and segmentation supervision.
Sections 3.2–3.4, pp.3–6 · Main paper
Figures, captions and visual explanation
The overview keeps face and hair pathways in separate colors and explicitly labels real composite, synthetic bald and segmentation targets; its caption distinguishes same-subject training from cross-subject testing.
Figure 2, p.4 · Main paper
Tables, comparisons and evidence
Personalization comparison averages eight unseen identities using front-view fully-lit head rotation; qualitative ablations separately vary anchor geometry and boundary segmentation treatment.
Section 4.1 and Table 1, p.7; Figures 7–8, p.8 · Main paper
Appendix and reproducibility
The preliminaries refer readers to the inherited relightable-avatar formulation; no detailed appendix roadmap was located in the main scan. Separate supplementary material remains outside the inspected scope.
Section 3.1, p.3; main argument through p.8 · Main paper
Clarity and writing conventions
The limitations name large hair motion, synthetic scalp color, fixed UV anchors and unobserved-scalp relighting as distinct unresolved cases.
Section 5, p.8 · Main paper
What to reuse—and what not to infer
Transferable lesson: Draw supervision provenance alongside compositional branches and use targeted visual ablations for boundary artifacts.
Boundary: Monocular personalization depends on a prior learned from specialized multi-camera/light captures. Synthetic bald targets are inferred rather than observed scalp truth; smooth examples do not establish complete disentanglement or arbitrary hair dynamics.
Apply this lesson using the argument and evidence worksheet.
Inspection record and sources
- Checked
- 2026-10-07
- Reading status
- Writing-focused manuscript scan + selected visuals inspected
- Main text
- Writing-oriented scan across the main manuscript, physical PDF pp.1–8, covering framing, section progression, method explanations, captions, comparison protocols and concluding scope; reference boundary checked. Selected full-page rasters were inspected. Not exhaustive line-by-line reading, proof verification or experimental reproduction.
- Appendix / supplement
- Main-paper appendix/supplement references were checked. A separate supplementary source is linked in the inventory but was not retrieved or inspected; its contents are not included in the reading or visual-page counts.
- Visually inspected PDF pages
- 4, 8
This is a writing-focused scan of the manuscript and the stated supplementary scope: framing, organization, visual explanation, evidence presentation and wording. It is not a line-by-line proof audit, reproduction of results or exhaustive scientific review.