AnchorFlow: Editable SVG Reconstruction via Sparse Anchor Point Fields

• URL: http://arxiv.org/abs/2605.19551v1
• Date: Tue, 19 May 2026 08:49:17 GMT
• Title: AnchorFlow: Editable SVG Reconstruction via Sparse Anchor Point Fields
• Abstract summary: Image-to-SVG reconstruction aims to produce vector graphics that are faithful to inputs and easy to edit.<n>Existing methods face a structural trade-off in how vector structure is parameterized.<n>High-fidelity methods often rely on many paths or densely parameterized curves, whereas overly compact generation may deviate from the input geometry.
• Score: 1.6513874937184163
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Image-to-SVG reconstruction aims to produce vector graphics that are faithful to raster inputs and easy to edit. Existing methods face a structural trade-off in how vector structure is parameterized, including how many paths represent an image and how many anchor points define each path. High-fidelity methods often rely on many paths or densely parameterized curves, whereas overly compact SVG generation may deviate from the input geometry. This issue becomes more pronounced when local raster evidence is imperfect, where boundary-following reconstruction can introduce redundant anchors and fragmented structures. We argue that this trade-off should be addressed at the level of anchor placement, since anchors on Bezier curves define local path structure and strongly affect both accuracy and editability. We propose AnchorFlow, an editable SVG reconstruction framework that models path-level anchor placement with sparse anchor point fields. Given path-like foreground components extracted from a raster image, AnchorFlow predicts an image-conditioned sparse anchor field for each component and resolves it into an ordered Bezier path. Rendering-guided feedback then corrects local structural errors before re-resolution. The recovered paths are then assembled and optimized into the final SVG. Experiments on isolated paths and full images show that AnchorFlow achieves a favorable fidelity-editability trade-off, substantially reducing editable complexity while preserving competitive raster fidelity.

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