Writing study: ChordEdit: One-Step Low-Energy Transport for Image Editing

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← CVPR 2026 oral writing corpus

Liangsi Lu, Xuhang Chen, Minzhe Guo, Shichu Li, Jingchao Wang, Yang Shi · Official CVPR 2026 oral record

Observed writing choices, not acceptance rules. This study examines the inspected manuscript version. It does not establish why the paper was accepted or that its presentation choices should be copied unchanged.

Figure, table and section ledger

Editorial contribution type: Efficiency, inference & systems (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

10 physical pages

Before references / appendix

≈ 8.04 page-equivalents

Main figures / tables

11 / 3

Attached appendix figures / tables

0 / 0

Attached appendix span

Separate file recorded below; not in this PDF total

Before references / appendix: ≈ 80.4%References / intervening material: ≈ 19.6%Estimated layout envelopes, not text/artwork area. Unresolved appendix boundaries remain within the undivided post-body material.

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.

Top-level heading	Starts on PDF page	Estimated span	Share of entire PDF
1. Introduction	2	≈ 0.87 pp.	8.7%
2. Related Work	2	≈ 0.27 pp.	2.7%
3. Preliminaries	3	≈ 0.55 pp.	5.5%
4. ChordEdit	3	≈ 1.67 pp.	16.7%
5. Experiments	5	≈ 2.33 pp.	23.3%
6. Ablation Study	7	≈ 1.07 pp.	10.7%
7. Conclusion	8	≈ 0.24 pp.	2.4%
References	9	≈ 1.96 pp.	19.6%

All detected figure and table locations

Main text

• Figure 1 · p. 1
• Figure 2 · p. 2
• Figure 3 · p. 2
• Figure 4 · p. 4
• Figure 5 · p. 5
• Figure 6 · p. 5
• Table 1 · p. 6
• Figure 7 · p. 6
• Figure 8 · p. 7
• Figure 9 · p. 7
• Figure 10 · p. 8
• Figure 11 · p. 8
• Table 2 · p. 8
• Table 3 · p. 8

Attached appendix

No recognized caption labels.

Separate source files—excluded from canonical-PDF totals

A separate author version may repeat main text and references. Whole-file lengths and counts are not extra appendix material and are never added to the canonical PDF totals. Read the study's source scope for which sections received substantive reading versus layout inspection.

Additional source 1

Separate PDF (or ZIP containing it): whole-file layout of 24 physical pages; 13 detected figures and 2 tables. These may include overlapping main-text material.

Located appendix only: starts on physical p.5; ≈ 19.45 page-equivalents, 13 figure labels and 2 table labels. This interval is distinct from the whole file.

Detected heading	PDF page	Estimated span
1. Pointwise Jensen’s Inequality. For any fixed time t, we	5	≈ 0.12 pp.
2. Integration and Fubini’s Theorem. We integrate this	5	≈ 0.18 pp.
3. Strict Inequality. The inequality is strict if the pointwise	5	≈ 18.25 pp.
References	24	≈ 0.91 pp.

• Figure 1 · p. 12
• Figure 2 · p. 12
• Figure 3 · p. 13
• Figure 4 · p. 13
• Figure 5 · p. 14
• Figure 6 · p. 14
• Figure 7 · p. 15
• Figure 8 · p. 15
• Figure 9 · p. 16
• Table 1 · p. 17
• Figure 10 · p. 18
• Table 2 · p. 20
• Figure 11 · p. 21
• Figure 12 · p. 22
• Figure 13 · p. 23

Argument and organization

1. Failure of naive acceleration

   Show the one-step collapse before defining observable fields and the transport estimator.

2. Derivation to executable steps and trade-offs

   Provide a simplified algorithm, then compare runtime/quality and dissect transport, refinement and sampling noise.

Problem, claim and contribution

The motivation demonstrates that reducing integration steps is not a free speedup: naive drift differences distort objects and backgrounds.

Figures 2–3, PDF p. 2 · Main paper · Additional source 2

Argument and section order

Preliminaries distinguish the ideal flow from the observable noisy-state model before introducing the local estimator and optional proximal step.

Sections 3–4, PDF pp. 3–5 · Main paper · Additional source 2

Figures, captions and visual explanation

The page-6 comparison table displays training/inversion requirements and efficiency alongside preservation and semantic scores; its image grid prints each edit beneath the corresponding row.

Table 1 and Figure 7, PDF p. 6; visual inspection · Main paper · Additional source 2

Tables, comparisons and evidence

The paper separates field stability, noise-count sensitivity, transport/refinement contributions and model transfer rather than using one overall quality score to justify every mechanism.

Section 6, Figures 9 and 11, Tables 2–3, PDF pp. 7–8 · Main paper · Additional source 2

Appendix and reproducibility

A contents list indexes derivations, energy bounds, gap analysis, expanded ablations, user study, multi-noise pseudocode and a symbol table, making a long mathematical supplement navigable.

Supplement contents, PDF p. 1; Sections B–L · Main paper · Additional source 2

Clarity and writing conventions

The implementation text explicitly says the default includes refinement and is NFE=2, an essential qualification to the one-step title.

Implementation details, PDF p. 5 · Main paper · Additional source 2

What to reuse—and what not to infer

Transferable lesson: For a speed paper, distinguish algorithmic step count from actual model evaluations and runtime; show quality–preservation trade-offs, not only one favored operating point.

Boundary: Do not describe the default full pipeline as a single model evaluation. The theory has surrogate and smoothness assumptions, and this writing scan does not certify its proofs.

Apply this lesson using the argument and evidence worksheet.

Inspection record and sources

Checked

2026-09-26

Reading status

Writing-focused manuscript scan + selected visuals inspected

Main text

Manuscript-wide writing scan of PDF pp. 1–10: framing, argument sequence, section organization, figure/table captions, evaluation interpretation and limitations; reference sections identified. This is a writing-focused scan, not an exhaustive technical proof or reproduction audit. Main PDF pages 3 and 6 were rendered and visually inspected.

Appendix / supplement

Writing-focused scan of the separate supplementary PDF, pp. 1–24, including its organization, captions, protocol/evidence detail and limitation material where present; proofs and code listings were inspected for exposition, not independently verified or executed. Supplement contents, PDF p. 1; Sections B–L. Linked video/audio demonstrations and non-PDF archive contents were not assessed.

Visually inspected PDF pages

3, 6

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.

• Official CVPR 2026 CVF open-access accepted manuscript; retrieved 2026-09-26 · 10 pages
• Official CVPR 2026 CVF supplementary PDF; retrieved 2026-09-26 · 24 pages