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Article: Top-Down Shape Abstraction Based on Greedy Pole Selection

TitleTop-Down Shape Abstraction Based on Greedy Pole Selection
Authors
Issue Date2020
PublisherIEEE. The Journal's web site is located at http://www.computer.org/tvcg
Citation
IEEE Transactions on Visualization and Computer Graphics, 2020, p. pp (99):1-1 How to Cite?
AbstractMotivated by the fact that the medial axis transform is able to encode the shape completely, we propose to use as few medial balls as possible to approximate the original enclosed volume by the boundary surface. We progressively select new medial balls, in a top-down style, to enlarge the region spanned by the existing medial balls. The key spirit of the selection strategy is to encourage large medial balls while imposing given geometric constraints. We further propose a speedup technique based on a provable observation that the intersection of medial balls implies the adjacency of power cells (in the sense of the power crust). We further elaborate the selection rules in combination with two closely related applications. One application is to develop an easy-to use ball-stick modeling system that helps non-professional users to quickly build a shape with only balls and wires, but any penetration between two medial balls must be suppressed. The other application is to generate porous structures with convex, compact (with a high isoperimetric quotient) and shape-aware pores where two adjacent spherical pores may have penetration as long as the mechanical rigidity can be well preserved.
Persistent Identifierhttp://hdl.handle.net/10722/294272

 

DC FieldValueLanguage
dc.contributor.authorDou, Z-
dc.contributor.authorXin, S-
dc.contributor.authorXu, R-
dc.contributor.authorXu, J-
dc.contributor.authorZhou, Y-
dc.contributor.authorChen, SM-
dc.contributor.authorWang, WP-
dc.contributor.authorZhao, X-
dc.contributor.authorTu, C-
dc.date.accessioned2020-11-23T08:28:59Z-
dc.date.available2020-11-23T08:28:59Z-
dc.date.issued2020-
dc.identifier.citationIEEE Transactions on Visualization and Computer Graphics, 2020, p. pp (99):1-1-
dc.identifier.urihttp://hdl.handle.net/10722/294272-
dc.description.abstractMotivated by the fact that the medial axis transform is able to encode the shape completely, we propose to use as few medial balls as possible to approximate the original enclosed volume by the boundary surface. We progressively select new medial balls, in a top-down style, to enlarge the region spanned by the existing medial balls. The key spirit of the selection strategy is to encourage large medial balls while imposing given geometric constraints. We further propose a speedup technique based on a provable observation that the intersection of medial balls implies the adjacency of power cells (in the sense of the power crust). We further elaborate the selection rules in combination with two closely related applications. One application is to develop an easy-to use ball-stick modeling system that helps non-professional users to quickly build a shape with only balls and wires, but any penetration between two medial balls must be suppressed. The other application is to generate porous structures with convex, compact (with a high isoperimetric quotient) and shape-aware pores where two adjacent spherical pores may have penetration as long as the mechanical rigidity can be well preserved.-
dc.languageeng-
dc.publisherIEEE. The Journal's web site is located at http://www.computer.org/tvcg-
dc.relation.ispartofIEEE Transactions on Visualization and Computer Graphics-
dc.rightsIEEE Transactions on Visualization and Computer Graphics. Copyright © IEEE.-
dc.rights©20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.-
dc.titleTop-Down Shape Abstraction Based on Greedy Pole Selection-
dc.typeArticle-
dc.identifier.emailWang, WP: wenping@cs.hku.hk-
dc.identifier.authorityWang, WP=rp00186-
dc.identifier.doi10.1109/TVCG.2020.2995495-
dc.identifier.hkuros319225-
dc.identifier.spagepp (99):1-
dc.identifier.epage1-

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