Singularity-free frame fields for line drawing vectorization
dc.contributor.author | Guțan, Olga | |
dc.contributor.author | Hegde, Shreya | |
dc.contributor.author | Jimenez Berumen, Erick | |
dc.contributor.author | Bessmeltsev, Mikhail | |
dc.contributor.author | Chien, Edward | |
dc.date.accessioned | 2023-07-19T15:40:20Z | |
dc.date.available | MONTHS_WITHHELD:12 | fr |
dc.date.available | 2023-07-19T15:40:20Z | |
dc.date.issued | 2023-07-19 | |
dc.identifier.uri | http://hdl.handle.net/1866/28422 | |
dc.publisher | Wiley | fr |
dc.subject | Computing methodologies | fr |
dc.subject | Parametric curve and surface models | fr |
dc.subject | Shape analysis | fr |
dc.title | Singularity-free frame fields for line drawing vectorization | fr |
dc.type | Article | fr |
dc.contributor.affiliation | Université de Montréal. Faculté des arts et des sciences. Département d'informatique et de recherche opérationnelle | fr |
dc.identifier.doi | 10.1111/cgf.14901 | |
dcterms.abstract | State-of-the-art methods for line drawing vectorization rely on generated frame fields for robust direction disambiguation, with each of the two axes aligning to different intersecting curve tangents around junctions. However, a common source of topological error for such methods are frame field singularities. To remedy this, we introduce the first frame field optimization framework guaranteed to produce singularity-free fields aligned to a line drawing. We first perform a convex solve for a roughly-aligned orthogonal frame field (cross field), and then comb away its internal singularities with an optimal transport–based matching. The resulting topology of the field is strictly maintained with the machinery of discrete trivial connections in a final, non-convex optimization that allows non-orthogonality of the field, improving smoothness and tangent alignment. Our frame fields can serve as a drop-in replacement for frame field optimizations used in previous work, improving the quality of the final vectorizations. | fr |
dcterms.isPartOf | urn:ISSN:1467-8659 | fr |
dcterms.isPartOf | urn:ISSN:0167-7055 | fr |
dcterms.language | eng | fr |
UdeM.ReferenceFournieParDeposant | Singularity-Free Frame Fields for Line Drawing Vectorization par Olga Guțan, Shreya Hegde, Erick Jimenez Berumen, Mikhail Bessmeltsev, Edward Chien. Accepté à Symposium on Geometry Processing 2023 | fr |
UdeM.VersionRioxx | Version acceptée / Accepted Manuscript | fr |
oaire.citationTitle | Computer graphics forum | fr |
oaire.citationVolume | 42 | fr |
oaire.citationIssue | 5 | fr |
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