Co-Analysis and Parameterization of 3D Shape Collections for Shape Synthesis

Information

• Publication Type: Master Thesis
• Workgroup(s)/Project(s):
  • MAKE-IT-FAB: Modeling of Shapes for Personal Fabrication
• Date: 2016
• Date (Start): 30. January 2015
• Date (End): 29. February 2016
• TU Wien Library:
• First Supervisor: Przemyslaw Musialski
• Keywords: computer graphics, 3D shape segmentation, 3D shape co-analysis, 3D shape processing

Abstract

With online model repositories growing larger every day, both experienced and inexperienced modelers are presented with new possibilities for content creation. One such possibility is the creation of new shapes by combining parts of already existing shapes. The advantages of this shape synthesis method are that it takes less time than traditional modeling approaches and that it can be used even by inexperienced users. This thesis introduces a framework for this type of shape synthesis that consists of four stages, incorporating a new way for parameterization and exploration of shape collections. Using a modular and extensible approach, the co-analysis stage groups parts of shapes into categories based on their function, creating a correspondence between parts of different shapes. By analyzing relations between pairs of parts and how their spatial arrangements vary across the collection, a small number of parameters is found in the parameterization stage. Starting with an initial shape, these parameters can then be used to browse the collection in the exploration stage, either by altering the parameters directly or by interacting with the shape itself. Finally, in the synthesis stage a new shape can be created by exchanging parts of the initial shape with corresponding parts of the shapes found during the exploration.

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BibTeX

@mastersthesis{leimer-2016-coan,
  title =      "Co-Analysis and Parameterization of 3D Shape Collections for
               Shape Synthesis",
  author =     "Kurt Leimer",
  year =       "2016",
  abstract =   "With online model repositories growing larger every day,
               both experienced and inexperienced modelers are presented
               with new possibilities for content creation. One such
               possibility is the creation of new shapes by combining parts
               of already existing shapes. The advantages of this shape
               synthesis method are that it takes less time than
               traditional modeling approaches and that it can be used even
               by inexperienced users. This thesis introduces a framework
               for this type of shape synthesis that consists of four
               stages, incorporating a new way for parameterization and
               exploration of shape collections. Using a modular and
               extensible approach, the co-analysis stage groups parts of
               shapes into categories based on their function, creating a
               correspondence between parts of different shapes. By
               analyzing relations between pairs of parts and how their
               spatial arrangements vary across the collection, a small
               number of parameters is found in the parameterization stage.
               Starting with an initial shape, these parameters can then be
               used to browse the collection in the exploration stage,
               either by altering the parameters directly or by interacting
               with the shape itself. Finally, in the synthesis stage a new
               shape can be created by exchanging parts of the initial
               shape with corresponding parts of the shapes found during
               the exploration.",
  address =    "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
  school =     "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology ",
  keywords =   "computer graphics, 3D shape segmentation, 3D shape
               co-analysis, 3D shape processing",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2016/leimer-2016-coan/",
}