Line Drawing Vectorization via Coarse‐to‐Fine Curve Network Optimization

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dc.contributor.authorBao, Binen_US
dc.contributor.authorFu, Hongboen_US
dc.contributor.editorHauser, Helwig and Alliez, Pierreen_US
dc.date.accessioned2023-10-06T11:58:48Z
dc.date.available2023-10-06T11:58:48Z
dc.date.issued2023
dc.description.abstractVectorizing line drawings is a fundamental component of the workflow in various applications such as graphic design and computer animation. A practical vectorization tool is desired to produce high‐quality curves that are faithful to the original inputs and close to the connectivity of human drawings. The existing line vectorization approaches either suffer from low geometry accuracy or incorrect connectivity for noisy inputs or detailed complex drawings. We propose a novel line drawing vectorization framework based on coarse‐to‐fine curve network optimization. Our technique starts with an initial curve network generated by an existing tracing method. It then performs a global optimization which fits the curve network to image centrelines. Finally, our method performs a finer optimization in local junction regions to achieve better connectivity and curve geometry around junctions. We qualitatively and quantitatively evaluate our system on line drawings with varying image quality and shape complexity, and show that our technique outperforms existing works in terms of curve quality and computational time.en_US
dc.description.number6
dc.description.sectionheadersORIGINAL ARTICLES
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume42
dc.identifier.doi10.1111/cgf.14787
dc.identifier.issn1467-8659
dc.identifier.urihttps://doi.org/10.1111/cgf.14787
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf14787
dc.publisher© 2023 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd.en_US
dc.subjectmethods and applications
dc.subjectline drawings
dc.subjectvectorization
dc.titleLine Drawing Vectorization via Coarse‐to‐Fine Curve Network Optimizationen_US
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