Slices: A shape-proxy based on planar sections

Handle URI:
http://hdl.handle.net/10754/575785
Title:
Slices: A shape-proxy based on planar sections
Authors:
McCrae, James; Singh, Karan S.; Mitra, Niloy J. ( 0000-0002-2597-0914 )
Abstract:
Minimalist object representations or shape-proxies that spark and inspire human perception of shape remain an incompletely understood, yet powerful aspect of visual communication. We explore the use of planar sections, i.e., the contours of intersection of planes with a 3D object, for creating shape abstractions, motivated by their popularity in art and engineering. We first perform a user study to show that humans do define consistent and similar planar section proxies for common objects. Interestingly, we observe a strong correlation between user-defined planes and geometric features of objects. Further we show that the problem of finding the minimum set of planes that capture a set of 3D geometric shape features is both NP-hard and not always the proxy a user would pick. Guided by the principles inferred from our user study, we present an algorithm that progressively selects planes to maximize feature coverage, which in turn influence the selection of subsequent planes. The algorithmic framework easily incorporates various shape features, while their relative importance values are computed and validated from the user study data. We use our algorithm to compute planar slices for various objects, validate their utility towards object abstraction using a second user study, and conclude showing the potential applications of the extracted planar slice shape proxies.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Publisher:
Association for Computing Machinery (ACM)
Journal:
ACM Transactions on Graphics
Conference/Event name:
SIGGRAPH Asia 2011
Issue Date:
1-Dec-2011
DOI:
10.1145/2070781.2024202
Type:
Conference Paper
ISBN:
9781450308076
Appears in Collections:
Conference Papers; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMcCrae, Jamesen
dc.contributor.authorSingh, Karan S.en
dc.contributor.authorMitra, Niloy J.en
dc.date.accessioned2015-08-24T09:26:09Zen
dc.date.available2015-08-24T09:26:09Zen
dc.date.issued2011-12-01en
dc.identifier.isbn9781450308076en
dc.identifier.doi10.1145/2070781.2024202en
dc.identifier.urihttp://hdl.handle.net/10754/575785en
dc.description.abstractMinimalist object representations or shape-proxies that spark and inspire human perception of shape remain an incompletely understood, yet powerful aspect of visual communication. We explore the use of planar sections, i.e., the contours of intersection of planes with a 3D object, for creating shape abstractions, motivated by their popularity in art and engineering. We first perform a user study to show that humans do define consistent and similar planar section proxies for common objects. Interestingly, we observe a strong correlation between user-defined planes and geometric features of objects. Further we show that the problem of finding the minimum set of planes that capture a set of 3D geometric shape features is both NP-hard and not always the proxy a user would pick. Guided by the principles inferred from our user study, we present an algorithm that progressively selects planes to maximize feature coverage, which in turn influence the selection of subsequent planes. The algorithmic framework easily incorporates various shape features, while their relative importance values are computed and validated from the user study data. We use our algorithm to compute planar slices for various objects, validate their utility towards object abstraction using a second user study, and conclude showing the potential applications of the extracted planar slice shape proxies.en
dc.publisherAssociation for Computing Machinery (ACM)en
dc.titleSlices: A shape-proxy based on planar sectionsen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalACM Transactions on Graphicsen
dc.conference.date12-15 December,2011en
dc.conference.nameSIGGRAPH Asia 2011en
dc.conference.locationHong Kong,Chinaen
dc.contributor.institutionUniversity of Toronto, Canadaen
kaust.authorMitra, Niloy J.en
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