Structuring and layering contour drawings of organic shapes
ENTEM, Even
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments [IMAGINE ]
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments [IMAGINE ]
PARAKKAT, Amal
Advanced Geometric Computing Lab [AGCL]
Indian Institute of Technology Madras [IIT Madras]
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Advanced Geometric Computing Lab [AGCL]
Indian Institute of Technology Madras [IIT Madras]
ENTEM, Even
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments [IMAGINE ]
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments [IMAGINE ]
PARAKKAT, Amal
Advanced Geometric Computing Lab [AGCL]
Indian Institute of Technology Madras [IIT Madras]
Advanced Geometric Computing Lab [AGCL]
Indian Institute of Technology Madras [IIT Madras]
BARTHE, Loic
Visual Objects from Reality To Expression [IRIT-VORTEX]
Melting the frontiers between Light, Shape and Matter [MANAO]
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Visual Objects from Reality To Expression [IRIT-VORTEX]
Melting the frontiers between Light, Shape and Matter [MANAO]
Langue
en
Communication dans un congrès avec actes
Ce document a été publié dans
Expressive '18 Proceedings of the Joint Symposium on Computational Aesthetics and Sketch-Based Interfaces and Modeling and Non-Photorealistic Animation and Rendering, Expressive 2018 - Joint Symposium on Computational Aesthetics and Sketch-Based Interfaces and Modeling and Non-Photorealistic Animation and Rendering, 2018-08-17, Victoria. vol. 18, p. 1-14
ACM Press
Résumé en anglais
Complex vector drawings serve as convenient and expressive visual representations, but they remain difficult to edit or manipulate. For clean-line vector drawings of smooth organic shapes, we describe a method to automatically ...Lire la suite >
Complex vector drawings serve as convenient and expressive visual representations, but they remain difficult to edit or manipulate. For clean-line vector drawings of smooth organic shapes, we describe a method to automatically extract a layered structure for the drawn object from the current or nearby viewpoints. The layers correspond to salient regions of the drawing, which are often naturally associated to 'parts' of the underlying shape. We present a method that automatically extracts salient structure, organized as parts with relative depth orderings, from clean-line vector drawings of smooth organic shapes. Our method handles drawings that contain complex internal contours with T-junctions indicative of occlusions, as well as internal curves that may either be expressive strokes or substructures. To extract the structure, we introduce a new part-aware metric for complex 2D drawings, the radial variation metric, which is used to identify salient sub-parts. These sub-parts are then considered in a priority-ordered fashion, which enables us to identify and recursively process new shape parts while keeping track of Permission to make digital their relative depth ordering. The output is represented in terms of scalable vector graphics layers, thereby enabling meaningful editing and manipulation. We evaluate the method on multiple input drawings and show that the structure we compute is convenient for subsequent posing and animation from nearby viewpoints.< Réduire
Mots clés en anglais
Contour completion
Shape segmentation
Vector drawing analysis
Projet Européen
EXPloring REsponsive Shapes for Seamless desIgn of Virtual Environments be retained.
Origine
Importé de halUnités de recherche