Removing Popular Faces in Curve Arrangements

A face in a curve arrangement is called popular if it is bounded by the same curve multiple times. Motivated by the automatic generation of curved nonogram puzzles, we investigate possibilities to eliminate the popular faces in an arrangement by inserting a single additional curve. This turns out to be NP-hard; however, it becomes tractable when the number of popular faces is small: We present a randomized FPT-time algorithm where the parameter is the number of popular faces.

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Publication Details

Journal
Journal of Graph Algorithms and Applications
Published
2024-11-03
DOI
https://doi.org/10.7155/jgaa.v28i2.2988
Primary Topic
Image Processing and 3D Reconstruction
Type
article
Field-Weighted Citation Impact
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article

Removing Popular Faces in Curve Arrangements

Zuzana Masárová, Maarten Löffler, Alexandra Weinberger, Phoebe de Nooijer et al.
Journal of Graph Algorithms and Applications
Image Processing and 3D Reconstruction
article

Removing Popular Faces in Curve Arrangements

Zuzana Masárová, Maarten Löffler, Alexandra Weinberger, Phoebe de Nooijer, Soeren Terziadis, Günter Rote, Tamara Mchedlidze
article en

Abstract

A face in a curve arrangement is called popular if it is bounded by the same curve multiple times. Motivated by the automatic generation of curved nonogram puzzles, we investigate possibilities to eliminate the popular faces in an arrangement by inserting a single additional curve. This turns out to be NP-hard; however, it becomes tractable when the number of popular faces is small: We present a randomized FPT-time algorithm where the parameter is the number of popular faces.

Journal of Graph Algorithms and ApplicationsVol. 28(2)
FernUniversität in Hagen (DE), Institute of Science and Technology Austria (AT), Utrecht University (NL), Freie Universität Berlin (DE), Eindhoven University of Technology (NL)
Reduced inequalities
Openalex Percentile: Top 81%
Image Processing and 3D Reconstruction
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