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A robust method for scale independent detection of curvature-based criticalities and intersections in line drawings
Date
2015-01-01
Author
Keles, Hacer Yalim
Tarı, Zehra Sibel
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
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A novel two-phase iterative method is proposed to identify curvature based criticalities and intersections in line drawings. The method is based on evaluating a field obtained from the image via diffusion using adaptively changing ellipse-shaped analysis windows. The deviation of the average field strength values within the analysis windows from that of an external reference field is used as a metric to evaluate the criticality of a region. The external reference field is computed from an image of a straight line. The experimental results depict that the method is effective in detecting curvature based criticalities and intersections, even for noisy and disconnected drawings as well as drawings drawn with a variety of brush characteristics, such as glass, ocean, ripple, scatter, stamp, strokes effects. Our method can be employed as a part of a design grammar interpreter.
Subject Keywords
Line drawings
,
Varying brush characteristics
,
Curvature
,
Intersection points
,
Computational design
URI
https://hdl.handle.net/11511/32695
Journal
PATTERN RECOGNITION
DOI
https://doi.org/10.1016/j.patcog.2014.07.005
Collections
Department of Computer Engineering, Article